https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100164
--- Comment #15 from Thomas Rodgers <rodgertq at gcc dot gnu.org> ---
>From the most recent patch -
+ _GLIBCXX_ALWAYS_INLINE bool
+ _M_try_acquire() noexcept
+ {
+ for (;;)
+ {
+ auto __err = sem_trywait(&_M_semaphore);
+ if (__err && (errno == EINTR))
+ continue;
+ else if (__err && (errno == EAGAIN))
+ return false;
+ else if (__err)
+ std::terminate();
+ else
+ break;
+ }
+ return true;
+ }
+
You are correct it was never exercised. I saw then when I forced it in the test
case and then added the above. I don't understand why you are seeing this error
if you've applied the 0001-libstdc-Work-around-for-PR100164 patch. I don't see
it locally.
