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This reworks the internal member functions for erasure from unordered containers, similarly to the earlier commit doing it for insertion. Instead of multiple overloads of _M_erase which are selected via tag dispatching, the erase(const key_type&) member can use 'if constexpr' to choose an appropriate implementation (returning after erasing a single element for unique keys, or continuing to erase all equivalent elements for non-unique keys). libstdc++-v3/ChangeLog: * include/bits/hashtable.h (_Hashtable::_M_erase): Remove overloads for erasing by key, moving logic to ... (_Hashtable::erase): ... here. Reviewed-by: François Dumont <fdumont@gcc.gnu.org> |
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