template<bool __sentinels, typename _RAIterIterator, typename _RAIter3, typename _DifferenceTp, typename _Compare>
struct __gnu_parallel::__multiway_merge_4_variant_sentinel_switch< __sentinels, _RAIterIterator, _RAIter3, _DifferenceTp, _Compare >
Switch for 4-way merging with __sentinels turned off.
Note that 4-way merging is always stable!
Definition at line 795 of file multiway_merge.h.