https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86013
Bug ID: 86013
Summary: std::vector::shrink_to_fit() could sometimes use
realloc()
Product: gcc
Version: 8.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: jan.kratochvil at redhat dot com
Target Milestone: ---
std::vector::shrink_to_fit() when reducing the size it still calls new()+copy.
It could use realloc() when the objects are trivially copyable resulting in no
copy during size reduction.
Maybe it could even always call realloc() for size reduction of any type of
objects and just assert the returned pointer did not change.
