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flat_set::emplace (and flat_multiset's) currently unconditionally constructs an object outside of the container, but if we're passed a value_type object we can and should avoid that. PR libstdc++/119620 libstdc++-v3/ChangeLog: * include/std/flat_set (_Flat_set_impl::_M_try_emplace): Split out into two overloads, one taking at least one argument and one taking zero arguments. Turn __k into an auto&& reference bound to __arg if it's already a value_type and otherwise bound to a lifetime-extended value_type temporary. * testsuite/23_containers/flat_multiset/1.cc (test08): New test. * testsuite/23_containers/flat_set/1.cc (test08): New test. Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com> Reviewed-by: Jonathan Wakely <jwakely@redhat.com> |
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| include | ||
| libsupc++ | ||
| po | ||
| python | ||
| scripts | ||
| src | ||
| testsuite | ||
| .editorconfig | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| ChangeLog | ||
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| config.h.in | ||
| configure | ||
| configure.ac | ||
| configure.host | ||
| crossconfig.m4 | ||
| fragment.am | ||
| linkage.m4 | ||
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| README | ||
file: libstdc++-v3/README New users may wish to point their web browsers to the file index.html in the 'doc/html' subdirectory. It contains brief building instructions and notes on how to configure the library in interesting ways.