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# mtx_unlock

From cppreference.com
< c‎ | thread

Defined in header `<threads.h>` |  |
int mtx_unlock( mtx_t *mutex ); |  | (since C11)

Unlocks the mutex pointed to by `mutex`.

The behavior is undefined if the mutex is not locked by the calling thread.

### [edit] Parameters

mutex | - | pointer to the mutex to unlock

### [edit] Return value

thrd_success if successful, thrd_error otherwise.

### [edit] See also

mtx_lock (C11) | blocks until locks a mutex (function) [edit]
mtx_timedlock (C11) | blocks until locks a mutex or times out (function) [edit]
mtx_trylock (C11) | locks a mutex or returns without blocking if already locked (function) [edit]

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