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)

Linux                                                                          2021-03-22                                                               PTHREAD_EQUAL(3)