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Diffstat (limited to 'libstdc++-v3/include/std/mutex')
| -rw-r--r-- | libstdc++-v3/include/std/mutex | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/mutex b/libstdc++-v3/include/std/mutex index a4a8df07f03..12b7e548d17 100644 --- a/libstdc++-v3/include/std/mutex +++ b/libstdc++-v3/include/std/mutex @@ -189,6 +189,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION bool _M_try_lock_until(const chrono::time_point<_Clock, _Duration>& __atime) { +#if __cplusplus > 201703L + static_assert(chrono::is_clock_v<_Clock>); +#endif // The user-supplied clock may not tick at the same rate as // steady_clock, so we must loop in order to guarantee that // the timeout has expired before returning false. |