2 @section @code{sem_trywait}
5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/sem_trywait.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function is missing on some platforms:
17 IRIX 5.3, Solaris 2.4, mingw, BeOS.