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3.2.1 omp_init_lock and omp_init_nest_lock Functions

These functions provide the only means of initializing a lock. Each function initializes the lock associated with the parameter lock for use in subsequent calls. The format is as follows:

#include <omp.h>
void omp_init_lock(omp_lock_t *lock);
void omp_init_nest_lock(omp_nest_lock_t *lock);

The initial state is unlocked (that is, no thread owns the lock). For a nestable lock, the initial nesting count is zero. It is noncompliant to call either of these routines with a lock variable that has already been initialized.