NAME¶

pthread_equal - compare thread IDs

LIBRARY¶

POSIX threads library (libpthread, -lpthread)

SYNOPSIS¶

#include <pthread.h>

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).

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)