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| author | Jonathan Wakely <jwakely@redhat.com> | 2024-09-26 16:55:07 +0100 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2024-10-09 13:39:16 +0100 |
| commit | 361d230fd7800a7e749aba8ed020f54f5c26d504 (patch) | |
| tree | aa237d273949733bd26601e567893b541ecb91e3 /gcc | |
| parent | 6ce1df379a64439ea429b6c5834e9f853d520112 (diff) | |
| download | gcc-361d230fd7800a7e749aba8ed020f54f5c26d504.zip gcc-361d230fd7800a7e749aba8ed020f54f5c26d504.tar.gz gcc-361d230fd7800a7e749aba8ed020f54f5c26d504.tar.bz2 | |
libstdc++: Enable _GLIBCXX_ASSERTIONS by default for -O0 [PR112808]
Too many users don't know about -D_GLIBCXX_ASSERTIONS and so are missing
valuable checks for C++ standard library preconditions. This change
enables libstdc++ assertions by default when compiling with -O0 so that
we diagnose more bugs by default.
When users enable optimization we don't add the assertions by default
(because they have non-zero overhead) so they still need to enable them
manually.
For users who really don't want the assertions even in unoptimized
builds, defining _GLIBCXX_NO_ASSERTIONS will prevent them from being
enabled automatically.
libstdc++-v3/ChangeLog:
PR libstdc++/112808
* doc/xml/manual/using.xml (_GLIBCXX_ASSERTIONS): Document
implicit definition for -O0 compilation.
(_GLIBCXX_NO_ASSERTIONS): Document.
* doc/html/manual/using_macros.html: Regenerate.
* include/bits/c++config [!__OPTIMIZE__] (_GLIBCXX_ASSERTIONS):
Define for unoptimized builds.
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions