pthread_key_delete man page on FreeBSD

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PTHREAD_KEY_DELETE(3)	 BSD Library Functions Manual	 PTHREAD_KEY_DELETE(3)

NAME
     pthread_key_delete — delete a thread-specific data key

LIBRARY
     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS
     #include <pthread.h>

     int
     pthread_key_delete(pthread_key_t key);

DESCRIPTION
     The pthread_key_delete() function deletes a thread-specific data key pre‐
     viously returned by pthread_key_create().	The thread-specific data val‐
     ues associated with key need not be NULL at the time that
     pthread_key_delete() is called.  It is the responsibility of the applica‐
     tion to free any application storage or perform any cleanup actions for
     data structures related to the deleted key or associated thread-specific
     data in any threads; this cleanup can be done either before or after
     pthread_key_delete() is called.  Any attempt to use key following the
     call to pthread_key_delete() results in undefined behavior.

     The pthread_key_delete() function is callable from within destructor
     functions.	 Destructor functions are not invoked by pthread_key_delete().
     Any destructor function that may have been associated with key will no
     longer be called upon thread exit.

RETURN VALUES
     If successful, the pthread_key_delete() function will return zero.	 Oth‐
     erwise an error number will be returned to indicate the error.

ERRORS
     The pthread_key_delete() function will fail if:

     [EINVAL]		The key value is invalid.

SEE ALSO
     pthread_getspecific(3), pthread_key_create(3), pthread_setspecific(3)

STANDARDS
     The pthread_key_delete() function conforms to ISO/IEC 9945-1:1996
     (“POSIX.1”).

BSD				 April 4, 1996				   BSD
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