pthread_equal man page

pthread_equal — compare thread IDs


#include <pthread.h>

int pthread_equal(pthread_t t1, pthread_t t2);

Compile and link with -pthread.


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.


This function always succeeds.


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.


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)


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Referenced By

pthread_create(3), pthreads(7), pthread_self(3).

2015-08-08 Linux Programmer's Manual