pthread_equal

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  at-
       tributes(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  di-
       rectly compare two pthread_t values.

SEE ALSO
       pthread_create(3), pthread_self(3), pthreads(7)

COLOPHON
       This  page  is  part of release 5.05 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)