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.
If the two thread IDs are equal, pthread_equal() returns a nonzero value; otherwise, it returns 0.
This function always succeeds.
The pthread_equal() function is necessary because thread IDs should be considered opaque: there is no portable way for applications to directly compare two
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