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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 4.16 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)