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As currently implemented, condition_variable always ultimately waits against std::chrono::system_clock. This clock can be changed in arbitrary ways by the user which may result in us waking up too early or too late when measured against the caller-supplied clock. We can't (yet) do much about waking up too late (PR 41861), but if we wake up too early we must return cv_status::no_timeout to indicate a spurious wakeup rather than incorrectly returning cv_status::timeout. 2018-08-01 Mike Crowe <mac@mcrowe.com> * include/std/condition_variable (wait_until): Only report timeout if we really have timed out when measured against the caller-supplied clock. * testsuite/30_threads/condition_variable/members/2.cc: Add test case to confirm above behaviour. From-SVN: r263224 |
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| testsuite | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| ChangeLog | ||
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| ChangeLog-2017 | ||
| config.h.in | ||
| configure | ||
| configure.ac | ||
| configure.host | ||
| crossconfig.m4 | ||
| fragment.am | ||
| linkage.m4 | ||
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| Makefile.in | ||
| 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.