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| author | Patrick Palka <ppalka@redhat.com> | 2021-05-18 00:26:25 -0400 |
|---|---|---|
| committer | Patrick Palka <ppalka@redhat.com> | 2021-05-18 00:26:25 -0400 |
| commit | 03cf8d54e5c27cfe6b184cc96757cab30d8fa1df (patch) | |
| tree | 88dac99b5e5398864699ab9fa636e72afccd7d0a /gcc | |
| parent | 2e2eef80ac0c21f9533e6791ccf5e29458cbb77c (diff) | |
| download | gcc-03cf8d54e5c27cfe6b184cc96757cab30d8fa1df.zip gcc-03cf8d54e5c27cfe6b184cc96757cab30d8fa1df.tar.gz gcc-03cf8d54e5c27cfe6b184cc96757cab30d8fa1df.tar.bz2 | |
libstdc++: Fix condition for memoizing reverse_view::begin() [PR100621]
A range being a random access range isn't a sufficient condition for
ranges::next(iter, sent) to have constant time complexity -- it must
also have a sized sentinel. This adjusts the memoization condition for
reverse_view accordingly.
libstdc++-v3/ChangeLog:
PR libstdc++/100621
* include/std/ranges (reverse_view::_S_needs_cached_begin):
Set to true if the underlying non-common random-access range
doesn't have a sized sentinel.
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions