pthread_equal(3) Library Functions Manual pthread_equal(3) NAME pthread_equal - compare thread IDs LIBRARY POSIX threads library (libpthread, -lpthread) SYNOPSIS #include int pthread_equal(pthread_t t1, pthread_t t2); DESCRIPTION The pthread_equal() function compares two thread identifiers. RETURN VALUE If the two thread IDs are equal, pthread_equal() returns a nonzero value; otherwise, it returns 0. ERRORS This function always succeeds. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). +--------------------------------------------+---------------+---------+ |Interface | Attribute | Value | +--------------------------------------------+---------------+---------+ |pthread_equal () | Thread safety | MT-Safe | +--------------------------------------------+---------------+---------+ STANDARDS POSIX.1-2008. HISTORY POSIX.1-2001. NOTES The pthread_equal() function is necessary because thread IDs should be considered opaque: there is no portable way for applications to directly compare two pthread_t values. SEE ALSO pthread_create(3), pthread_self(3), pthreads(7) Linux man-pages 6.7 2023-10-31 pthread_equal(3)