--------------------------------------------------------------------------------AIX Version 4.3 Base Operating System and Extensions Technical Reference, Volume                                       1--------------------------------------------------------------------------------pthread_equal SubroutinePurposeCompares two thread IDs.LibraryThreads Library (libpthreads.a)Syntax#include <pthread.h>int pthread_equal (pthread_t t1, pthread_t t2);DescriptionThe pthread_equal subroutine compares the thread IDs thread1 and thread2. Sincethe thread IDs are opaque objects, it should not be assumed that they can becompared using the equality operator (==).    Note: The pthread.h header file must be the first included file of each    source file using the threads library. Otherwise, the -D_THREAD_SAFE    compilation flag should be used, or the cc_r compiler used. In this case, the    flag is automatically set.Parametersthread1 Specifies the first ID to be compared.thread2 Specifies the second ID to be compared.Return ValuesThe pthread_equal function returns a non-zero value if t1 and t2 are equal;otherwise, zero is returned.If either t1 or t2 are not valid thread IDs, the behaviour is undefined.Implementation SpecificsThis subroutine is part of the Base Operating System (BOS) Runtime.Related InformationThe pthread_self subroutine, the pthread_create subroutine, the pthread.h file.Creating Threads in AIX Version 4.3 General Programming Concepts: Writing andDebugging Programs.Threads Library Quick Reference in AIX Version 4.3 General Programming Concepts:Writing and Debugging Programs.--------------------------------------------------------------------------------