mirror of git://gcc.gnu.org/git/gcc.git
390f3a690c
This patch introduces a new function, _M_fill_append, which is invoked when copies of the same value are appended to the end of a vector. Unlike _M_fill_insert(end(), n, v), _M_fill_append never permute elements in place, so it does not require: * vector element type to be assignable; * a copy of the inserted value, in the case where it points to an element of the vector. vector::resize(n, v) now uses _M_fill_append, fixing the non-conformance where element types were required to be assignable. In addition, _M_fill_insert(end(), n, v) now delegates to _M_fill_append, which eliminates an unnecessary copy of v when the existing capacity is used. PR libstdc++/90192 libstdc++-v3/ChangeLog: * include/bits/stl_vector.h (vector<T>::_M_fill_append): Declare. (vector<T>::fill): Use _M_fill_append instead of _M_fill_insert. * include/bits/vector.tcc (vector<T>::_M_fill_append): Define (vector<T>::_M_fill_insert): Delegate to _M_fill_append when elements are appended. * testsuite/23_containers/vector/modifiers/moveable.cc: Updated copycount for inserting at the end (appending). * testsuite/23_containers/vector/modifiers/resize.cc: New test. * testsuite/backward/hash_set/check_construct_destroy.cc: Updated copycount, the hash_set constructor uses insert to fill buckets with nullptrs. Reviewed-by: Jonathan Wakely <jwakely@redhat.com> Signed-off-by: Tomasz Kamiński <tkaminsk@redhat.com> |
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| hash_map | ||
| hash_set | ||
| 11460.cc | ||
| strstream_members.cc | ||
| strstream_move.cc | ||