If condition return 0 even when it fails to satisfy te condition Post: 302805295

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LEARN ABOUT OSX

pthread_cond_init

PTHREAD_COND_INIT(3)					   BSD Library Functions Manual 				      PTHREAD_COND_INIT(3)

NAME

     pthread_cond_init -- create a condition variable

SYNOPSIS

     #include <pthread.h>

     int
     pthread_cond_init(pthread_cond_t *restrict cond, const pthread_condattr_t *restrict attr);

DESCRIPTION

     The pthread_cond_init() function creates a new condition variable, with attributes specified with attr.  If attr is NULL, the default
     attributes are used.

RETURN VALUES

     If successful, the pthread_cond_init() function will return zero and put the new condition variable id into cond.	Otherwise, an error number
     will be returned to indicate the error.

ERRORS

     pthread_cond_init() will fail if:

     [EAGAIN]		The system temporarily lacks the resources to create another condition variable.

     [EINVAL]		The value specified by attr is invalid.

     [ENOMEM]		The process cannot allocate enough memory to create another condition variable.

SEE ALSO

     pthread_cond_broadcast(3), pthread_cond_destroy(3), pthread_cond_signal(3), pthread_cond_timedwait(3), pthread_cond_wait(3)

STANDARDS

     pthread_cond_init() conforms to ISO/IEC 9945-1:1996 (``POSIX.1'').

BSD
								   July 28, 1998							       BSD

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Difference between [condition] and [[condition]] and ((condition)) when used with if condition

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