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PTHREAD_EQUAL(3)           Linux Programmer's Manual          PTHREAD_EQUAL(3)
NAME
       pthread_equal - compare thread IDs
SYNOPSIS
       #include <pthread.h>
       int pthread_equal(pthread_t t1, pthread_t t2);
       Compile and link with -pthread.
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 |
       +----------------+---------------+---------+
CONFORMING TO
       POSIX.1-2001, POSIX.1-2008.
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)
COLOPHON
       This  page  is  part of release 4.15 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       https://www.kernel.org/doc/man-pages/.
Linux                             2015-08-08                  PTHREAD_EQUAL(3)