libstdc++
Public Types | Public Member Functions | Static Public Attributes
std::basic_string< _CharT, _Traits, _Alloc > Class Template Reference
Strings | Sequences
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Detailed Description

template<typename _CharT, typename _Traits, typename _Alloc>
class std::basic_string< _CharT, _Traits, _Alloc >

Managing sequences of characters and character-like objects.

Meets the requirements of a container, a reversible container, and a sequence. Of the optional sequence requirements, only push_back, at, and array access are supported.

Todo:
Needs documentation! See http://gcc.gnu.org/onlinedocs/libstdc++/manual/documentation_style.html

Documentation? What's that? Nathan Myers ncm@c.nosp@m.antr.nosp@m.ip.or.nosp@m.g.

A string looks like this:

                                        [_Rep]
                                        _M_length
   [basic_string<char_type>]            _M_capacity
   _M_dataplus                          _M_refcount
   _M_p ---------------->               unnamed array of char_type

Where the _M_p points to the first character in the string, and you cast it to a pointer-to-_Rep and subtract 1 to get a pointer to the header.

This approach has the enormous advantage that a string object requires only one allocation. All the ugliness is confined within a single pair of inline functions, which each compile to a single add instruction: _Rep::_M_data(), and string::_M_rep(); and the allocation function which gets a block of raw bytes and with room enough and constructs a _Rep object at the front.

The reason you want _M_data pointing to the character array and not the _Rep is so that the debugger can see the string contents. (Probably we should add a non-inline member to get the _Rep for the debugger to use, so users can check the actual string length.)

Note that the _Rep object is a POD so that you can have a static empty string _Rep object already constructed before static constructors have run. The reference-count encoding is chosen so that a 0 indicates one reference, so you never try to destroy the empty-string _Rep object.

All but the last paragraph is considered pretty conventional for a C++ string implementation.

Definition at line 109 of file basic_string.h.

Constructor & Destructor Documentation

template<typename _CharT, typename _Traits, typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( ) [inline]

Default constructor creates an empty string.

Definition at line 434 of file basic_string.h.

Referenced by std::basic_string< char >::substr().

template<typename _CharT , typename _Traits , typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( const _Alloc &  __a) [explicit]

Construct an empty string using allocator a.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 180 of file basic_string.tcc.

template<typename _CharT , typename _Traits , typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( const basic_string< _CharT, _Traits, _Alloc > &  __str)

Construct string with copy of value of str.

Parameters:
__strSource string.

Definition at line 172 of file basic_string.tcc.

template<typename _CharT , typename _Traits , typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos,
size_type  __n = npos 
)

Construct string as copy of a substring.

Parameters:
__strSource string.
__posIndex of first character to copy from.
__nNumber of characters to copy (default remainder).

Definition at line 186 of file basic_string.tcc.

template<typename _CharT , typename _Traits , typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos,
size_type  __n,
const _Alloc &  __a 
)

Construct string as copy of a substring.

Parameters:
__strSource string.
__posIndex of first character to copy from.
__nNumber of characters to copy.
__aAllocator to use.

Definition at line 196 of file basic_string.tcc.

template<typename _CharT, typename _Traits , typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( const _CharT *  __s,
size_type  __n,
const _Alloc &  __a = _Alloc() 
)

Construct string initialized by a character array.

Parameters:
__sSource character array.
__nNumber of characters to copy.
__aAllocator to use (default is default allocator).

NB: __s must have at least __n characters, '\0' has no special meaning.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 208 of file basic_string.tcc.

template<typename _CharT, typename _Traits , typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( const _CharT *  __s,
const _Alloc &  __a = _Alloc() 
)

Construct string as copy of a C string.

Parameters:
__sSource C string.
__aAllocator to use (default is default allocator).

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 215 of file basic_string.tcc.

template<typename _CharT, typename _Traits , typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( size_type  __n,
_CharT  __c,
const _Alloc &  __a = _Alloc() 
)

Construct string as multiple characters.

Parameters:
__nNumber of characters.
__cCharacter to use.
__aAllocator to use (default is default allocator).

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 222 of file basic_string.tcc.

template<typename _CharT, typename _Traits, typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( basic_string< _CharT, _Traits, _Alloc > &&  __str) [inline]

Move construct string.

Parameters:
__strSource string.

The newly-created string contains the exact contents of __str. __str is a valid, but unspecified string.

Definition at line 504 of file basic_string.h.

template<typename _CharT, typename _Traits , typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( initializer_list< _CharT >  __l,
const _Alloc &  __a = _Alloc() 
)

Construct string from an initializer list.

Parameters:
__lstd::initializer_list of characters.
__aAllocator to use (default is default allocator).

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 237 of file basic_string.tcc.

template<typename _CharT , typename _Traits , typename _Alloc>
template<typename _InputIterator >
std::basic_string< _CharT, _Traits, _Alloc >::basic_string ( _InputIterator  __beg,
_InputIterator  __end,
const _Alloc &  __a = _Alloc() 
)

Construct string as copy of a range.

Parameters:
__begStart of range.
__endEnd of range.
__aAllocator to use (default is default allocator).

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 230 of file basic_string.tcc.

template<typename _CharT, typename _Traits, typename _Alloc>
std::basic_string< _CharT, _Traits, _Alloc >::~basic_string ( ) [inline]

Destroy the string instance.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 535 of file basic_string.h.

Member Function Documentation

template<typename _CharT , typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc > & std::basic_string< _CharT, _Traits, _Alloc >::append ( const basic_string< _CharT, _Traits, _Alloc > &  __str)

Append a string to this string.

Parameters:
__strThe string to append.
Returns:
Reference to this string.

Definition at line 327 of file basic_string.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::size(), and std::size().

Referenced by std::basic_string< char >::append(), std::collate< _CharT >::do_transform(), std::operator+(), std::basic_string< char >::operator+=(), and std::operator>>().

template<typename _CharT , typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc > & std::basic_string< _CharT, _Traits, _Alloc >::append ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos,
size_type  __n 
)

Append a substring.

Parameters:
__strThe string to append.
__posIndex of the first character of str to append.
__nThe number of characters to append.
Returns:
Reference to this string.
Exceptions:
std::out_of_rangeif __pos is not a valid index.

This function appends __n characters from __str starting at __pos to this string. If __n is is larger than the number of available characters in __str, the remainder of __str is appended.

Definition at line 344 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc > & std::basic_string< _CharT, _Traits, _Alloc >::append ( const _CharT *  __s,
size_type  __n 
)

Append a C substring.

Parameters:
__sThe C string to append.
__nThe number of characters to append.
Returns:
Reference to this string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 300 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::append ( const _CharT *  __s) [inline]

Append a C string.

Parameters:
__sThe C string to append.
Returns:
Reference to this string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1003 of file basic_string.h.

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc > & std::basic_string< _CharT, _Traits, _Alloc >::append ( size_type  __n,
_CharT  __c 
)

Append multiple characters.

Parameters:
__nThe number of characters to append.
__cThe character to use.
Returns:
Reference to this string.

Appends __n copies of __c to this string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 283 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::append ( initializer_list< _CharT >  __l) [inline]

Append an initializer_list of characters.

Parameters:
__lThe initializer_list of characters to append.
Returns:
Reference to this string.

Definition at line 1027 of file basic_string.h.

Referenced by std::basic_string< char >::append().

template<typename _CharT, typename _Traits, typename _Alloc>
template<class _InputIterator >
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::append ( _InputIterator  __first,
_InputIterator  __last 
) [inline]

Append a range of characters.

Parameters:
__firstIterator referencing the first character to append.
__lastIterator marking the end of the range.
Returns:
Reference to this string.

Appends characters in the range [first,last) to this string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1041 of file basic_string.h.

template<typename _CharT , typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc > & std::basic_string< _CharT, _Traits, _Alloc >::assign ( const basic_string< _CharT, _Traits, _Alloc > &  __str)

Set value to contents of another string.

Parameters:
__strSource string to use.
Returns:
Reference to this string.

Definition at line 245 of file basic_string.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::get_allocator().

Referenced by std::basic_string< char >::assign(), std::basic_string< char >::operator=(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), std::basic_string< char >::push_back(), and std::basic_stringbuf< _CharT, _Traits, _Alloc >::str().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::assign ( basic_string< _CharT, _Traits, _Alloc > &&  __str) [inline]

Set value to contents of another string.

Parameters:
__strSource string to use.
Returns:
Reference to this string.

This function sets this string to the exact contents of __str. __str is a valid, but unspecified string.

Definition at line 1076 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::assign ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos,
size_type  __n 
) [inline]

Set value to a substring of a string.

Parameters:
__strThe string to use.
__posIndex of the first character of str.
__nNumber of characters to use.
Returns:
Reference to this string.
Exceptions:
std::out_of_rangeif pos is not a valid index.

This function sets this string to the substring of __str consisting of __n characters at __pos. If __n is is larger than the number of available characters in __str, the remainder of __str is used.

Definition at line 1097 of file basic_string.h.

Referenced by std::basic_string< char >::assign().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc > & std::basic_string< _CharT, _Traits, _Alloc >::assign ( const _CharT *  __s,
size_type  __n 
)

Set value to a C substring.

Parameters:
__sThe C string to use.
__nNumber of characters to use.
Returns:
Reference to this string.

This function sets the value of this string to the first __n characters of __s. If __n is is larger than the number of available characters in __s, the remainder of __s is used.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 261 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::assign ( const _CharT *  __s) [inline]

Set value to contents of a C string.

Parameters:
__sThe C string to use.
Returns:
Reference to this string.

This function sets the value of this string to the value of __s. The data is copied, so there is no dependence on __s once the function returns.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1125 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::assign ( size_type  __n,
_CharT  __c 
) [inline]

Set value to multiple characters.

Parameters:
__nLength of the resulting string.
__cThe character to use.
Returns:
Reference to this string.

This function sets the value of this string to __n copies of character __c.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1141 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
template<class _InputIterator >
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::assign ( _InputIterator  __first,
_InputIterator  __last 
) [inline]

Set value to a range of characters.

Parameters:
__firstIterator referencing the first character to append.
__lastIterator marking the end of the range.
Returns:
Reference to this string.

Sets value of string to characters in the range [first,last).

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1154 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::assign ( initializer_list< _CharT >  __l) [inline]

Set value to an initializer_list of characters.

Parameters:
__lThe initializer_list of characters to assign.
Returns:
Reference to this string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1164 of file basic_string.h.

Referenced by std::basic_string< char >::assign().

template<typename _CharT, typename _Traits, typename _Alloc>
const_reference std::basic_string< _CharT, _Traits, _Alloc >::at ( size_type  __n) const [inline]

Provides access to the data contained in the string.

Parameters:
__nThe index of the character to access.
Returns:
Read-only (const) reference to the character.
Exceptions:
std::out_of_rangeIf n is an invalid index.

This function provides for safer data access. The parameter is first checked that it is in the range of the string. The function throws out_of_range if the check fails.

Definition at line 861 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
reference std::basic_string< _CharT, _Traits, _Alloc >::at ( size_type  __n) [inline]

Provides access to the data contained in the string.

Parameters:
__nThe index of the character to access.
Returns:
Read/write reference to the character.
Exceptions:
std::out_of_rangeIf n is an invalid index.

This function provides for safer data access. The parameter is first checked that it is in the range of the string. The function throws out_of_range if the check fails. Success results in unsharing the string.

Definition at line 880 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
reference std::basic_string< _CharT, _Traits, _Alloc >::back ( ) [inline]

Returns a read/write reference to the data at the last element of the string.

Definition at line 910 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const_reference std::basic_string< _CharT, _Traits, _Alloc >::back ( ) const [inline]

Returns a read-only (constant) reference to the data at the last element of the string.

Definition at line 918 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
iterator std::basic_string< _CharT, _Traits, _Alloc >::begin ( ) [inline]

Returns a read/write iterator that points to the first character in the string. Unshares the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 602 of file basic_string.h.

Referenced by std::basic_string< char >::crend(), std::regex_match(), std::regex_replace(), std::regex_search(), and std::basic_string< char >::rend().

template<typename _CharT, typename _Traits, typename _Alloc>
const_iterator std::basic_string< _CharT, _Traits, _Alloc >::begin ( ) const [inline]

Returns a read-only (constant) iterator that points to the first character in the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 613 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const _CharT* std::basic_string< _CharT, _Traits, _Alloc >::c_str ( ) const [inline]

Return const pointer to null-terminated contents.

This is a handle to internal data. Do not modify or dire things may happen.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1797 of file basic_string.h.

Referenced by std::collate< _CharT >::do_compare(), std::money_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(), std::collate< _CharT >::do_transform(), and std::basic_filebuf< char_type, traits_type >::open().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::capacity ( ) const [inline]

Returns the total number of characters that the string can hold before needing to allocate more memory.

Definition at line 773 of file basic_string.h.

Referenced by std::basic_string< char >::push_back(), and std::basic_string< char >::shrink_to_fit().

template<typename _CharT, typename _Traits, typename _Alloc>
const_iterator std::basic_string< _CharT, _Traits, _Alloc >::cbegin ( ) const [inline]

Returns a read-only (constant) iterator that points to the first character in the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 677 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const_iterator std::basic_string< _CharT, _Traits, _Alloc >::cend ( ) const [inline]

Returns a read-only (constant) iterator that points one past the last character in the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 685 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
void std::basic_string< _CharT, _Traits, _Alloc >::clear ( ) [inline]

Erases the string, making it empty.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 800 of file basic_string.h.

Referenced by std::basic_stringbuf< _CharT, _Traits, _Alloc >::setbuf().

template<typename _CharT, typename _Traits, typename _Alloc>
int std::basic_string< _CharT, _Traits, _Alloc >::compare ( const basic_string< _CharT, _Traits, _Alloc > &  __str) const [inline]

Compare to a string.

Parameters:
__strString to compare against.
Returns:
Integer < 0, 0, or > 0.

Returns an integer < 0 if this string is ordered before __str, 0 if their values are equivalent, or > 0 if this string is ordered after __str. Determines the effective length rlen of the strings to compare as the smallest of size() and str.size(). The function then compares the two strings by calling traits::compare(data(), str.data(),rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.

Definition at line 2222 of file basic_string.h.

Referenced by std::sub_match< _Bi_iter >::compare(), std::basic_string< char >::compare(), std::operator<(), std::operator<=(), std::operator==(), std::operator>(), and std::operator>=().

template<typename _CharT , typename _Traits , typename _Alloc >
int std::basic_string< _CharT, _Traits, _Alloc >::compare ( size_type  __pos,
size_type  __n,
const basic_string< _CharT, _Traits, _Alloc > &  __str 
) const

Compare substring to a string.

Parameters:
__posIndex of first character of substring.
__nNumber of characters in substring.
__strString to compare against.
Returns:
Integer < 0, 0, or > 0.

Form the substring of this string from the __n characters starting at __pos. Returns an integer < 0 if the substring is ordered before __str, 0 if their values are equivalent, or > 0 if the substring is ordered after __str. Determines the effective length rlen of the strings to compare as the smallest of the length of the substring and __str.size(). The function then compares the two strings by calling traits::compare(substring.data(),str.data(),rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.

Definition at line 918 of file basic_string.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::data(), std::min(), and std::basic_string< _CharT, _Traits, _Alloc >::size().

template<typename _CharT , typename _Traits , typename _Alloc >
int std::basic_string< _CharT, _Traits, _Alloc >::compare ( size_type  __pos1,
size_type  __n1,
const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos2,
size_type  __n2 
) const

Compare substring to a substring.

Parameters:
__pos1Index of first character of substring.
__n1Number of characters in substring.
__strString to compare against.
__pos2Index of first character of substring of str.
__n2Number of characters in substring of str.
Returns:
Integer < 0, 0, or > 0.

Form the substring of this string from the __n1 characters starting at __pos1. Form the substring of __str from the __n2 characters starting at __pos2. Returns an integer < 0 if this substring is ordered before the substring of __str, 0 if their values are equivalent, or > 0 if this substring is ordered after the substring of __str. Determines the effective length rlen of the strings to compare as the smallest of the lengths of the substrings. The function then compares the two strings by calling traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.

Definition at line 933 of file basic_string.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::data(), and std::min().

template<typename _CharT, typename _Traits , typename _Alloc >
int std::basic_string< _CharT, _Traits, _Alloc >::compare ( const _CharT *  __s) const

Compare to a C string.

Parameters:
__sC string to compare against.
Returns:
Integer < 0, 0, or > 0.

Returns an integer < 0 if this string is ordered before __s, 0 if their values are equivalent, or > 0 if this string is ordered after __s. Determines the effective length rlen of the strings to compare as the smallest of size() and the length of a string constructed from __s. The function then compares the two strings by calling traits::compare(data(),s,rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 951 of file basic_string.tcc.

References std::min(), and std::size().

template<typename _CharT, typename _Traits , typename _Alloc >
int std::basic_string< _CharT, _Traits, _Alloc >::compare ( size_type  __pos,
size_type  __n1,
const _CharT *  __s 
) const

Compare substring to a C string.

Parameters:
__posIndex of first character of substring.
__n1Number of characters in substring.
__sC string to compare against.
Returns:
Integer < 0, 0, or > 0.

Form the substring of this string from the n1 characters starting at pos. Returns an integer < 0 if the substring is ordered before __s, 0 if their values are equivalent, or > 0 if the substring is ordered after __s. Determines the effective length rlen of the strings to compare as the smallest of the length of the substring and the length of a string constructed from __s. The function then compares the two string by calling traits::compare(substring.data(),s,rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 966 of file basic_string.tcc.

References std::min().

template<typename _CharT, typename _Traits , typename _Alloc >
int std::basic_string< _CharT, _Traits, _Alloc >::compare ( size_type  __pos,
size_type  __n1,
const _CharT *  __s,
size_type  __n2 
) const

Compare substring against a character array.

Parameters:
__posIndex of first character of substring.
__n1Number of characters in substring.
__scharacter array to compare against.
__n2Number of characters of s.
Returns:
Integer < 0, 0, or > 0.

Form the substring of this string from the __n1 characters starting at __pos. Form a string from the first __n2 characters of __s. Returns an integer < 0 if this substring is ordered before the string from __s, 0 if their values are equivalent, or > 0 if this substring is ordered after the string from __s. Determines the effective length rlen of the strings to compare as the smallest of the length of the substring and __n2. The function then compares the two strings by calling traits::compare(substring.data(),s,rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.

NB: s must have at least n2 characters, '\0' has no special meaning.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 982 of file basic_string.tcc.

References std::min().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::copy ( _CharT *  __s,
size_type  __n,
size_type  __pos = 0 
) const

Copy substring into C string.

Parameters:
__sC string to copy value into.
__nNumber of characters to copy.
__posIndex of first character to copy.
Returns:
Number of characters actually copied
Exceptions:
std::out_of_rangeIf __pos > size().

Copies up to __n characters starting at __pos into the C string __s. If __pos is greater than size(), out_of_range is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 725 of file basic_string.tcc.

template<typename _CharT, typename _Traits, typename _Alloc>
const_reverse_iterator std::basic_string< _CharT, _Traits, _Alloc >::crbegin ( ) const [inline]

Returns a read-only (constant) reverse iterator that points to the last character in the string. Iteration is done in reverse element order.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 694 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const_reverse_iterator std::basic_string< _CharT, _Traits, _Alloc >::crend ( ) const [inline]

Returns a read-only (constant) reverse iterator that points to one before the first character in the string. Iteration is done in reverse element order.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 703 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const _CharT* std::basic_string< _CharT, _Traits, _Alloc >::data ( ) const [inline]

Return const pointer to contents.

This is a handle to internal data. Do not modify or dire things may happen.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1807 of file basic_string.h.

Referenced by std::basic_string< char >::compare(), std::basic_string< _CharT, _Traits, _Alloc >::compare(), std::collate< _CharT >::do_compare(), std::collate< _CharT >::do_transform(), std::basic_string< char >::find(), std::basic_string< char >::find_first_not_of(), std::basic_string< char >::find_last_of(), std::match_results< _FwdIterT, _Alloc >::format(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::str(), and std::regex_traits< _Ch_type >::transform().

template<typename _CharT, typename _Traits, typename _Alloc>
bool std::basic_string< _CharT, _Traits, _Alloc >::empty ( ) const [inline]

Returns true if the string is empty. Equivalent to *this == "".

Definition at line 808 of file basic_string.h.

Referenced by std::tr2::operator>>(), and std::operator>>().

template<typename _CharT, typename _Traits, typename _Alloc>
iterator std::basic_string< _CharT, _Traits, _Alloc >::end ( ) [inline]

Returns a read/write iterator that points one past the last character in the string. Unshares the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 621 of file basic_string.h.

Referenced by std::basic_string< char >::crbegin(), std::basic_string< char >::rbegin(), std::regex_match(), std::regex_replace(), and std::regex_search().

template<typename _CharT, typename _Traits, typename _Alloc>
const_iterator std::basic_string< _CharT, _Traits, _Alloc >::end ( ) const [inline]

Returns a read-only (constant) iterator that points one past the last character in the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 632 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::erase ( size_type  __pos = 0,
size_type  __n = npos 
) [inline]

Remove characters.

Parameters:
__posIndex of first character to remove (default 0).
__nNumber of characters to remove (default remainder).
Returns:
Reference to this string.
Exceptions:
std::out_of_rangeIf pos is beyond the end of this string.

Removes __n characters from this string starting at __pos. The length of the string is reduced by __n. If there are < __n characters to remove, the remainder of the string is truncated. If __p is beyond end of string, out_of_range is thrown. The value of the string doesn't change if an error is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1359 of file basic_string.h.

Referenced by std::getline(), std::operator>>(), and std::basic_string< char >::pop_back().

template<typename _CharT, typename _Traits, typename _Alloc>
iterator std::basic_string< _CharT, _Traits, _Alloc >::erase ( iterator  __position) [inline]

Remove one character.

Parameters:
__positionIterator referencing the character to remove.
Returns:
iterator referencing same location after removal.

Removes the character at __position from this string. The value of the string doesn't change if an error is thrown.

Definition at line 1375 of file basic_string.h.

template<typename _CharT , typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::iterator std::basic_string< _CharT, _Traits, _Alloc >::erase ( iterator  __first,
iterator  __last 
)

Remove a range of characters.

Parameters:
__firstIterator referencing the first character to remove.
__lastIterator referencing the end of the range.
Returns:
Iterator referencing location of first after removal.

Removes the characters in the range [first,last) from this string. The value of the string doesn't change if an error is thrown.

Definition at line 393 of file basic_string.tcc.

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find ( const _CharT *  __s,
size_type  __pos,
size_type  __n 
) const

Find position of a C substring.

Parameters:
__sC string to locate.
__posIndex of character to search from.
__nNumber of characters from s to search for.
Returns:
Index of start of first occurrence.

Starting from __pos, searches forward for the first __n characters in __s within this string. If found, returns the index where it begins. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 739 of file basic_string.tcc.

References std::size().

Referenced by std::basic_string< char >::find(), and std::basic_string< char >::find_first_of().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos = 0 
) const [inline]

Find position of a string.

Parameters:
__strString to locate.
__posIndex of character to search from (default 0).
Returns:
Index of start of first occurrence.

Starting from __pos, searches forward for value of __str within this string. If found, returns the index where it begins. If not found, returns npos.

Definition at line 1843 of file basic_string.h.

Referenced by std::basic_string< char >::find().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find ( const _CharT *  __s,
size_type  __pos = 0 
) const [inline]

Find position of a C string.

Parameters:
__sC string to locate.
__posIndex of character to search from (default 0).
Returns:
Index of start of first occurrence.

Starting from __pos, searches forward for the value of __s within this string. If found, returns the index where it begins. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1858 of file basic_string.h.

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find ( _CharT  __c,
size_type  __pos = 0 
) const

Find position of a character.

Parameters:
__cCharacter to locate.
__posIndex of character to search from (default 0).
Returns:
Index of first occurrence.

Starting from __pos, searches forward for __c within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 762 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_not_of ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos = 0 
) const [inline]

Find position of a character not in string.

Parameters:
__strString containing characters to avoid.
__posIndex of character to search from (default 0).
Returns:
Index of first occurrence.

Starting from __pos, searches forward for a character not contained in __str within this string. If found, returns the index where it was found. If not found, returns npos.

Definition at line 2076 of file basic_string.h.

Referenced by std::basic_string< char >::find_first_not_of().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_not_of ( const _CharT *  __s,
size_type  __pos,
size_type  __n 
) const

Find position of a character not in C substring.

Parameters:
__sC string containing characters to avoid.
__posIndex of character to search from.
__nNumber of characters from __s to consider.
Returns:
Index of first occurrence.

Starting from __pos, searches forward for a character not contained in the first __n characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 854 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_not_of ( const _CharT *  __s,
size_type  __pos = 0 
) const [inline]

Find position of a character not in C string.

Parameters:
__sC string containing characters to avoid.
__posIndex of character to search from (default 0).
Returns:
Index of first occurrence.

Starting from __pos, searches forward for a character not contained in __s within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 2107 of file basic_string.h.

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_not_of ( _CharT  __c,
size_type  __pos = 0 
) const

Find position of a different character.

Parameters:
__cCharacter to avoid.
__posIndex of character to search from (default 0).
Returns:
Index of first occurrence.

Starting from __pos, searches forward for a character other than __c within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 866 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_of ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos = 0 
) const [inline]

Find position of a character of string.

Parameters:
__strString containing characters to locate.
__posIndex of character to search from (default 0).
Returns:
Index of first occurrence.

Starting from __pos, searches forward for one of the characters of __str within this string. If found, returns the index where it was found. If not found, returns npos.

Definition at line 1949 of file basic_string.h.

Referenced by std::basic_string< char >::find_first_of().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_of ( const _CharT *  __s,
size_type  __pos,
size_type  __n 
) const

Find position of a character of C substring.

Parameters:
__sString containing characters to locate.
__posIndex of character to search from.
__nNumber of characters from s to search for.
Returns:
Index of first occurrence.

Starting from __pos, searches forward for one of the first __n characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 818 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_of ( const _CharT *  __s,
size_type  __pos = 0 
) const [inline]

Find position of a character of C string.

Parameters:
__sString containing characters to locate.
__posIndex of character to search from (default 0).
Returns:
Index of first occurrence.

Starting from __pos, searches forward for one of the characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1979 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_of ( _CharT  __c,
size_type  __pos = 0 
) const [inline]

Find position of a character.

Parameters:
__cCharacter to locate.
__posIndex of character to search from (default 0).
Returns:
Index of first occurrence.

Starting from __pos, searches forward for the character __c within this string. If found, returns the index where it was found. If not found, returns npos.

Note: equivalent to find(__c, __pos).

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1998 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_not_of ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos = npos 
) const [inline]

Find last position of a character not in string.

Parameters:
__strString containing characters to avoid.
__posIndex of character to search back from (default end).
Returns:
Index of last occurrence.

Starting from __pos, searches backward for a character not contained in __str within this string. If found, returns the index where it was found. If not found, returns npos.

Definition at line 2139 of file basic_string.h.

Referenced by std::basic_string< char >::find_last_not_of().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_not_of ( const _CharT *  __s,
size_type  __pos,
size_type  __n 
) const

Find last position of a character not in C substring.

Parameters:
__sC string containing characters to avoid.
__posIndex of character to search back from.
__nNumber of characters from s to consider.
Returns:
Index of last occurrence.

Starting from __pos, searches backward for a character not contained in the first __n characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 877 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_not_of ( const _CharT *  __s,
size_type  __pos = npos 
) const [inline]

Find last position of a character not in C string.

Parameters:
__sC string containing characters to avoid.
__posIndex of character to search back from (default end).
Returns:
Index of last occurrence.

Starting from __pos, searches backward for a character not contained in __s within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 2170 of file basic_string.h.

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_not_of ( _CharT  __c,
size_type  __pos = npos 
) const

Find last position of a different character.

Parameters:
__cCharacter to avoid.
__posIndex of character to search back from (default end).
Returns:
Index of last occurrence.

Starting from __pos, searches backward for a character other than __c within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 898 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_of ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos = npos 
) const [inline]

Find last position of a character of string.

Parameters:
__strString containing characters to locate.
__posIndex of character to search back from (default end).
Returns:
Index of last occurrence.

Starting from __pos, searches backward for one of the characters of __str within this string. If found, returns the index where it was found. If not found, returns npos.

Definition at line 2013 of file basic_string.h.

Referenced by std::basic_string< char >::find_last_of().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_of ( const _CharT *  __s,
size_type  __pos,
size_type  __n 
) const

Find last position of a character of C substring.

Parameters:
__sC string containing characters to locate.
__posIndex of character to search back from.
__nNumber of characters from s to search for.
Returns:
Index of last occurrence.

Starting from __pos, searches backward for one of the first __n characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 833 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_of ( const _CharT *  __s,
size_type  __pos = npos 
) const [inline]

Find last position of a character of C string.

Parameters:
__sC string containing characters to locate.
__posIndex of character to search back from (default end).
Returns:
Index of last occurrence.

Starting from __pos, searches backward for one of the characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 2043 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_of ( _CharT  __c,
size_type  __pos = npos 
) const [inline]

Find last position of a character.

Parameters:
__cCharacter to locate.
__posIndex of character to search back from (default end).
Returns:
Index of last occurrence.

Starting from __pos, searches backward for __c within this string. If found, returns the index where it was found. If not found, returns npos.

Note: equivalent to rfind(__c, __pos).

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 2062 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
reference std::basic_string< _CharT, _Traits, _Alloc >::front ( ) [inline]

Returns a read/write reference to the data at the first element of the string.

Definition at line 894 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const_reference std::basic_string< _CharT, _Traits, _Alloc >::front ( ) const [inline]

Returns a read-only (constant) reference to the data at the first element of the string.

Definition at line 902 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
allocator_type std::basic_string< _CharT, _Traits, _Alloc >::get_allocator ( ) const [inline]

Return copy of allocator used to construct this string.

Definition at line 1814 of file basic_string.h.

Referenced by std::basic_string< _CharT, _Traits, _Alloc >::assign(), std::basic_string< char >::basic_string(), std::basic_string< _CharT, _Traits, _Alloc >::swap(), and std::basic_string< char >::~basic_string().

template<typename _CharT, typename _Traits, typename _Alloc>
void std::basic_string< _CharT, _Traits, _Alloc >::insert ( iterator  __p,
size_type  __n,
_CharT  __c 
) [inline]

Insert multiple characters.

Parameters:
__pIterator referencing location in string to insert at.
__nNumber of characters to insert
__cThe character to insert.
Exceptions:
std::length_errorIf new length exceeds max_size().

Inserts __n copies of character __c starting at the position referenced by iterator __p. If adding characters causes the length to exceed max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1182 of file basic_string.h.

Referenced by std::basic_string< char >::insert().

template<typename _CharT, typename _Traits, typename _Alloc>
template<class _InputIterator >
void std::basic_string< _CharT, _Traits, _Alloc >::insert ( iterator  __p,
_InputIterator  __beg,
_InputIterator  __end 
) [inline]

Insert a range of characters.

Parameters:
__pIterator referencing location in string to insert at.
__begStart of range.
__endEnd of range.
Exceptions:
std::length_errorIf new length exceeds max_size().

Inserts characters in range [beg,end). If adding characters causes the length to exceed max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1199 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
void std::basic_string< _CharT, _Traits, _Alloc >::insert ( iterator  __p,
initializer_list< _CharT >  __l 
) [inline]

Insert an initializer_list of characters.

Parameters:
__pIterator referencing location in string to insert at.
__lThe initializer_list of characters to insert.
Exceptions:
std::length_errorIf new length exceeds max_size().

Definition at line 1210 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::insert ( size_type  __pos1,
const basic_string< _CharT, _Traits, _Alloc > &  __str 
) [inline]

Insert value of a string.

Parameters:
__pos1Iterator referencing location in string to insert at.
__strThe string to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().

Inserts value of __str starting at __pos1. If adding characters causes the length to exceed max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1230 of file basic_string.h.

Referenced by std::basic_string< char >::insert().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::insert ( size_type  __pos1,
const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos2,
size_type  __n 
) [inline]

Insert a substring.

Parameters:
__pos1Iterator referencing location in string to insert at.
__strThe string to insert.
__pos2Start of characters in str to insert.
__nNumber of characters to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().
std::out_of_rangeIf pos1 > size() or __pos2 > str.size().

Starting at pos1, insert __n character of __str beginning with __pos2. If adding characters causes the length to exceed max_size(), length_error is thrown. If __pos1 is beyond the end of this string or __pos2 is beyond the end of __str, out_of_range is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1252 of file basic_string.h.

Referenced by std::basic_string< char >::insert().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc > & std::basic_string< _CharT, _Traits, _Alloc >::insert ( size_type  __pos,
const _CharT *  __s,
size_type  __n 
)

Insert a C substring.

Parameters:
__posIterator referencing location in string to insert at.
__sThe C string to insert.
__nThe number of characters to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().
std::out_of_rangeIf __pos is beyond the end of this string.

Inserts the first __n characters of __s starting at __pos. If adding characters causes the length to exceed max_size(), length_error is thrown. If __pos is beyond end(), out_of_range is thrown. The value of the string doesn't change if an error is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 362 of file basic_string.tcc.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::insert ( size_type  __pos,
const _CharT *  __s 
) [inline]

Insert a C string.

Parameters:
__posIterator referencing location in string to insert at.
__sThe C string to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().
std::out_of_rangeIf pos is beyond the end of this string.

Inserts the first n characters of __s starting at __pos. If adding characters causes the length to exceed max_size(), length_error is thrown. If __pos is beyond end(), out_of_range is thrown. The value of the string doesn't change if an error is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1293 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::insert ( size_type  __pos,
size_type  __n,
_CharT  __c 
) [inline]

Insert multiple characters.

Parameters:
__posIndex in string to insert at.
__nNumber of characters to insert
__cThe character to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().
std::out_of_rangeIf __pos is beyond the end of this string.

Inserts __n copies of character __c starting at index __pos. If adding characters causes the length to exceed max_size(), length_error is thrown. If __pos > length(), out_of_range is thrown. The value of the string doesn't change if an error is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1316 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
iterator std::basic_string< _CharT, _Traits, _Alloc >::insert ( iterator  __p,
_CharT  __c 
) [inline]

Insert one character.

Parameters:
__pIterator referencing position in string to insert at.
__cThe character to insert.
Returns:
Iterator referencing newly inserted char.
Exceptions:
std::length_errorIf new length exceeds max_size().

Inserts character __c at position referenced by __p. If adding character causes the length to exceed max_size(), length_error is thrown. If __p is beyond end of string, out_of_range is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1334 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::length ( ) const [inline]

Returns the number of characters in the string, not including any null-termination.

Definition at line 718 of file basic_string.h.

Referenced by std::collate< _CharT >::do_compare(), std::collate< _CharT >::do_transform(), and std::regex_traits< _Ch_type >::length().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::max_size ( ) const [inline]

Returns the size() of the largest possible string.

Definition at line 723 of file basic_string.h.

Referenced by std::getline(), and std::operator>>().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator+= ( const basic_string< _CharT, _Traits, _Alloc > &  __str) [inline]

Append a string to this string.

Parameters:
__strThe string to append.
Returns:
Reference to this string.

Definition at line 929 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator+= ( const _CharT *  __s) [inline]

Append a C string.

Parameters:
__sThe C string to append.
Returns:
Reference to this string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 938 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator+= ( _CharT  __c) [inline]

Append a character.

Parameters:
__cThe character to append.
Returns:
Reference to this string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 947 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator+= ( initializer_list< _CharT >  __l) [inline]

Append an initializer_list of characters.

Parameters:
__lThe initializer_list of characters to be appended.
Returns:
Reference to this string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 960 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator= ( const basic_string< _CharT, _Traits, _Alloc > &  __str) [inline]

Assign the value of str to this string.

Parameters:
__strSource string.

Definition at line 543 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator= ( const _CharT *  __s) [inline]

Copy contents of s into this string.

Parameters:
__sSource null-terminated string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 551 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator= ( _CharT  __c) [inline]

Set value to string of length 1.

Parameters:
__cSource character.

Assigning to a character makes this string length 1 and (*this)[0] == c.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 562 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator= ( basic_string< _CharT, _Traits, _Alloc > &&  __str) [inline]

Move assign the value of str to this string.

Parameters:
__strSource string.

The contents of str are moved into this string (without copying). str is a valid, but unspecified string.

Definition at line 577 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::operator= ( initializer_list< _CharT >  __l) [inline]

Set value to string constructed from initializer list.

Parameters:
__lstd::initializer_list.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 589 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const_reference std::basic_string< _CharT, _Traits, _Alloc >::operator[] ( size_type  __pos) const [inline]

Subscript access to the data contained in the string.

Parameters:
__posThe index of the character to access.
Returns:
Read-only (constant) reference to the character.

This operator allows for easy, array-style, data access. Note that data access with this operator is unchecked and out_of_range lookups are not defined. (For checked lookups see at().)

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 823 of file basic_string.h.

Referenced by std::basic_string< char >::back(), and std::basic_string< char >::front().

template<typename _CharT, typename _Traits, typename _Alloc>
reference std::basic_string< _CharT, _Traits, _Alloc >::operator[] ( size_type  __pos) [inline]

Subscript access to the data contained in the string.

Parameters:
__posThe index of the character to access.
Returns:
Read/write reference to the character.

This operator allows for easy, array-style, data access. Note that data access with this operator is unchecked and out_of_range lookups are not defined. (For checked lookups see at().) Unshares the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 840 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
void std::basic_string< _CharT, _Traits, _Alloc >::pop_back ( ) [inline]

Remove the last character.

The string must be non-empty.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1404 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
void std::basic_string< _CharT, _Traits, _Alloc >::push_back ( _CharT  __c) [inline]

Append a single character.

Parameters:
__cCharacter to append.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1049 of file basic_string.h.

Referenced by std::collate< _CharT >::do_transform(), std::basic_string< char >::operator+=(), std::tr2::operator>>(), std::operator>>(), and std::basic_stringbuf< _CharT, _Traits, _Alloc >::overflow().

template<typename _CharT, typename _Traits, typename _Alloc>
reverse_iterator std::basic_string< _CharT, _Traits, _Alloc >::rbegin ( ) [inline]

Returns a read/write reverse iterator that points to the last character in the string. Iteration is done in reverse element order. Unshares the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 641 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const_reverse_iterator std::basic_string< _CharT, _Traits, _Alloc >::rbegin ( ) const [inline]

Returns a read-only (constant) reverse iterator that points to the last character in the string. Iteration is done in reverse element order.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 650 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
reverse_iterator std::basic_string< _CharT, _Traits, _Alloc >::rend ( ) [inline]

Returns a read/write reverse iterator that points to one before the first character in the string. Iteration is done in reverse element order. Unshares the string.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 659 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
const_reverse_iterator std::basic_string< _CharT, _Traits, _Alloc >::rend ( ) const [inline]

Returns a read-only (constant) reverse iterator that points to one before the first character in the string. Iteration is done in reverse element order.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 668 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( size_type  __pos,
size_type  __n,
const basic_string< _CharT, _Traits, _Alloc > &  __str 
) [inline]

Replace characters with value from another string.

Parameters:
__posIndex of first character to replace.
__nNumber of characters to be replaced.
__strString to insert.
Returns:
Reference to this string.
Exceptions:
std::out_of_rangeIf pos is beyond the end of this string.
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [pos,pos+__n) from this string. In place, the value of __str is inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of the result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1426 of file basic_string.h.

Referenced by std::basic_string< char >::append(), std::basic_string< char >::assign(), std::basic_string< char >::insert(), and std::basic_string< char >::replace().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( size_type  __pos1,
size_type  __n1,
const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos2,
size_type  __n2 
) [inline]

Replace characters with value from another string.

Parameters:
__pos1Index of first character to replace.
__n1Number of characters to be replaced.
__strString to insert.
__pos2Index of first character of str to use.
__n2Number of characters from str to use.
Returns:
Reference to this string.
Exceptions:
std::out_of_rangeIf __pos1 > size() or __pos2 > __str.size().
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [pos1,pos1 + n) from this string. In place, the value of __str is inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of the result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1448 of file basic_string.h.

Referenced by std::basic_string< char >::replace().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc > & std::basic_string< _CharT, _Traits, _Alloc >::replace ( size_type  __pos,
size_type  __n1,
const _CharT *  __s,
size_type  __n2 
)

Replace characters with value of a C substring.

Parameters:
__posIndex of first character to replace.
__n1Number of characters to be replaced.
__sC string to insert.
__n2Number of characters from s to use.
Returns:
Reference to this string.
Exceptions:
std::out_of_rangeIf pos1 > size().
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [pos,pos + __n1) from this string. In place, the first __n2 characters of __s are inserted, or all of __s if __n2 is too large. If __pos is beyond end of string, out_of_range is thrown. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 416 of file basic_string.tcc.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( size_type  __pos,
size_type  __n1,
const _CharT *  __s 
) [inline]

Replace characters with value of a C string.

Parameters:
__posIndex of first character to replace.
__n1Number of characters to be replaced.
__sC string to insert.
Returns:
Reference to this string.
Exceptions:
std::out_of_rangeIf pos > size().
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [pos,pos + __n1) from this string. In place, the characters of __s are inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1493 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( size_type  __pos,
size_type  __n1,
size_type  __n2,
_CharT  __c 
) [inline]

Replace characters with multiple characters.

Parameters:
__posIndex of first character to replace.
__n1Number of characters to be replaced.
__n2Number of characters to insert.
__cCharacter to insert.
Returns:
Reference to this string.
Exceptions:
std::out_of_rangeIf __pos > size().
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [pos,pos + n1) from this string. In place, __n2 copies of __c are inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1517 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( iterator  __i1,
iterator  __i2,
const basic_string< _CharT, _Traits, _Alloc > &  __str 
) [inline]

Replace range of characters with string.

Parameters:
__i1Iterator referencing start of range to replace.
__i2Iterator referencing end of range to replace.
__strString value to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [i1,i2). In place, the value of __str is inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1535 of file basic_string.h.

Referenced by std::basic_string< char >::replace().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( iterator  __i1,
iterator  __i2,
const _CharT *  __s,
size_type  __n 
) [inline]

Replace range of characters with C substring.

Parameters:
__i1Iterator referencing start of range to replace.
__i2Iterator referencing end of range to replace.
__sC string value to insert.
__nNumber of characters from s to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [i1,i2). In place, the first __n characters of __s are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1554 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( iterator  __i1,
iterator  __i2,
const _CharT *  __s 
) [inline]

Replace range of characters with C string.

Parameters:
__i1Iterator referencing start of range to replace.
__i2Iterator referencing end of range to replace.
__sC string value to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [i1,i2). In place, the characters of __s are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1575 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( iterator  __i1,
iterator  __i2,
size_type  __n,
_CharT  __c 
) [inline]

Replace range of characters with multiple characters.

Parameters:
__i1Iterator referencing start of range to replace.
__i2Iterator referencing end of range to replace.
__nNumber of characters to insert.
__cCharacter to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [i1,i2). In place, __n copies of __c are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1596 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
template<class _InputIterator >
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( iterator  __i1,
iterator  __i2,
_InputIterator  __k1,
_InputIterator  __k2 
) [inline]

Replace range of characters with range.

Parameters:
__i1Iterator referencing start of range to replace.
__i2Iterator referencing end of range to replace.
__k1Iterator referencing start of range to insert.
__k2Iterator referencing end of range to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [i1,i2). In place, characters in the range [k1,k2) are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1620 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace ( iterator  __i1,
iterator  __i2,
initializer_list< _CharT >  __l 
) [inline]

Replace range of characters with initializer_list.

Parameters:
__i1Iterator referencing start of range to replace.
__i2Iterator referencing end of range to replace.
__lThe initializer_list of characters to insert.
Returns:
Reference to this string.
Exceptions:
std::length_errorIf new length exceeds max_size().

Removes the characters in the range [i1,i2). In place, characters in the range [k1,k2) are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

Definition at line 1689 of file basic_string.h.

Referenced by std::basic_string< char >::replace().

template<typename _CharT , typename _Traits , typename _Alloc >
void std::basic_string< _CharT, _Traits, _Alloc >::reserve ( size_type  __res_arg = 0)

Attempt to preallocate enough memory for specified number of characters.

Parameters:
__res_argNumber of characters required.
Exceptions:
std::length_errorIf __res_arg exceeds max_size().

This function attempts to reserve enough memory for the string to hold the specified number of characters. If the number requested is more than max_size(), length_error is thrown.

The advantage of this function is that if optimal code is a necessity and the user can determine the string length that will be required, the user can reserve the memory in advance, and thus prevent a possible reallocation of memory and copying of string data.

Definition at line 504 of file basic_string.tcc.

References std::size().

Referenced by std::num_get< _CharT, _InIter >::do_get(), std::tr2::operator>>(), std::operator>>(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), std::basic_string< char >::push_back(), and std::basic_string< char >::shrink_to_fit().

template<typename _CharT, typename _Traits , typename _Alloc >
void std::basic_string< _CharT, _Traits, _Alloc >::resize ( size_type  __n,
_CharT  __c 
)

Resizes the string to the specified number of characters.

Parameters:
__nNumber of characters the string should contain.
__cCharacter to fill any new elements.

This function will resize the string to the specified number of characters. If the number is smaller than the string's current size the string is truncated, otherwise the string is extended and new elements are set to __c.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 642 of file basic_string.tcc.

References std::size().

Referenced by std::money_get< _CharT, _InIter >::do_get().

template<typename _CharT, typename _Traits, typename _Alloc>
void std::basic_string< _CharT, _Traits, _Alloc >::resize ( size_type  __n) [inline]

Resizes the string to the specified number of characters.

Parameters:
__nNumber of characters the string should contain.

This function will resize the string to the specified length. If the new size is smaller than the string's current size the string is truncated, otherwise the string is extended and new characters are default-constructed. For basic types such as char, this means setting them to 0.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 750 of file basic_string.h.

Referenced by std::basic_string< char >::resize().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::rfind ( const basic_string< _CharT, _Traits, _Alloc > &  __str,
size_type  __pos = npos 
) const [inline]

Find last position of a string.

Parameters:
__strString to locate.
__posIndex of character to search back from (default end).
Returns:
Index of start of last occurrence.

Starting from __pos, searches backward for value of __str within this string. If found, returns the index where it begins. If not found, returns npos.

Definition at line 1888 of file basic_string.h.

Referenced by std::basic_string< char >::find_last_of(), and std::basic_string< char >::rfind().

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::rfind ( const _CharT *  __s,
size_type  __pos,
size_type  __n 
) const

Find last position of a C substring.

Parameters:
__sC string to locate.
__posIndex of character to search back from.
__nNumber of characters from s to search for.
Returns:
Index of start of last occurrence.

Starting from __pos, searches backward for the first __n characters in __s within this string. If found, returns the index where it begins. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 780 of file basic_string.tcc.

References std::min(), and std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::rfind ( const _CharT *  __s,
size_type  __pos = npos 
) const [inline]

Find last position of a C string.

Parameters:
__sC string to locate.
__posIndex of character to start search at (default end).
Returns:
Index of start of last occurrence.

Starting from __pos, searches backward for the value of __s within this string. If found, returns the index where it begins. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 1918 of file basic_string.h.

template<typename _CharT, typename _Traits , typename _Alloc >
basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::rfind ( _CharT  __c,
size_type  __pos = npos 
) const

Find last position of a character.

Parameters:
__cCharacter to locate.
__posIndex of character to search back from (default end).
Returns:
Index of last occurrence.

Starting from __pos, searches backward for __c within this string. If found, returns the index where it was found. If not found, returns npos.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 801 of file basic_string.tcc.

References std::size().

template<typename _CharT, typename _Traits, typename _Alloc>
void std::basic_string< _CharT, _Traits, _Alloc >::shrink_to_fit ( ) [inline]

A non-binding request to reduce capacity() to size().

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 756 of file basic_string.h.

template<typename _CharT, typename _Traits, typename _Alloc>
size_type std::basic_string< _CharT, _Traits, _Alloc >::size ( ) const [inline]

Returns the number of characters in the string, not including any null-termination.

Definition at line 712 of file basic_string.h.

Referenced by std::basic_string< _CharT, _Traits, _Alloc >::append(), std::basic_string< char >::assign(), std::basic_string< char >::at(), std::basic_string< char >::back(), std::basic_string< char >::cend(), std::basic_string< char >::clear(), std::basic_string< char >::compare(), std::basic_string< _CharT, _Traits, _Alloc >::compare(), std::tr2::dynamic_bitset< _WordT, _Alloc >::dynamic_bitset(), std::basic_string< char >::empty(), std::basic_string< char >::end(), std::basic_string< char >::find(), std::basic_string< char >::find_first_not_of(), std::basic_string< char >::find_last_of(), std::match_results< _FwdIterT, _Alloc >::format(), std::basic_string< char >::insert(), std::operator+(), std::tr2::operator>>(), std::basic_string< char >::operator[](), std::basic_string< char >::pop_back(), std::basic_string< char >::push_back(), std::basic_string< char >::replace(), std::basic_string< char >::shrink_to_fit(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::str(), and std::regex_traits< _Ch_type >::transform().

template<typename _CharT, typename _Traits, typename _Alloc>
basic_string std::basic_string< _CharT, _Traits, _Alloc >::substr ( size_type  __pos = 0,
size_type  __n = npos 
) const [inline]

Get a substring.

Parameters:
__posIndex of first character (default 0).
__nNumber of characters in substring (default remainder).
Returns:
The new string.
Exceptions:
std::out_of_rangeIf __pos > size().

Construct and return a new string using the __n characters starting at __pos. If the string is too short, use the remainder of the characters. If __pos is beyond the end of the string, out_of_range is thrown.

Reimplemented in __gnu_debug::basic_string< _CharT, _Traits, _Allocator >.

Definition at line 2203 of file basic_string.h.

template<typename _CharT , typename _Traits , typename _Alloc >
void std::basic_string< _CharT, _Traits, _Alloc >::swap ( basic_string< _CharT, _Traits, _Alloc > &  __s)

Swap contents with another string.

Parameters:
__sString to swap with.

Exchanges the contents of this string with that of __s in constant time.

Definition at line 521 of file basic_string.tcc.

References std::basic_string< _CharT, _Traits, _Alloc >::get_allocator().

Referenced by std::basic_string< char >::assign(), std::basic_string< char >::operator=(), and std::swap().

Member Data Documentation

template<typename _CharT, typename _Traits, typename _Alloc>
const basic_string< _CharT, _Traits, _Alloc >::size_type std::basic_string< _CharT, _Traits, _Alloc >::npos [static]

Value returned by various member functions when they fail.

Definition at line 282 of file basic_string.h.

The documentation for this class was generated from the following files: