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| author | Jonathan Wakely <jwakely@redhat.com> | 2025-04-11 11:08:34 +0100 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2025-04-14 13:13:11 +0100 |
| commit | dd35f66287b7cca196a720c9641e463255dceb1c (patch) | |
| tree | 6c50820bb98d7c2c6543b964ce419cbbdc9d2ffc /gcc | |
| parent | 2f334a10bce0409c2cb4616496aafcb78f7db3d8 (diff) | |
| download | gcc-dd35f66287b7cca196a720c9641e463255dceb1c.zip gcc-dd35f66287b7cca196a720c9641e463255dceb1c.tar.gz gcc-dd35f66287b7cca196a720c9641e463255dceb1c.tar.bz2 | |
libstdc++: Document thread-safety for COW std::string [PR21334]
The gcc4-compatible copy-on-write std::string does not conform to the
C++11 requirements on data race avoidance in standard containers.
Specifically, calling non-const member functions such as begin() and
data() needs to do the "copy on write" operation and so is most
definitely a modification of the object. As such, those non-const
members must not be called concurrently with any other uses of the
string object.
libstdc++-v3/ChangeLog:
PR libstdc++/21334
* doc/xml/manual/using.xml: Document that container data race
avoidance rules do not apply to COW std::string.
* doc/html/*: Regenerate.
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions