omp_free (GNU libgomp)

#### 3.13.10 `omp_free` – Freeing memory allocated with OpenMP routines ¶

Description:

  The `omp_free` routine deallocates memory previously allocated by an OpenMP memory-management routine. The ptr argument must point to such memory or be a null pointer; if it is a null pointer, no operation is performed. If specified, the allocator argument must be either the memory allocator that was used for the allocation or `omp_null_allocator`; if it is `omp_null_allocator`, the implementation will determine the value automatically.

  Calling `omp_free` invokes undefined behavior if the memory was already deallocated or when the used allocator has already been destroyed.

C:

  Prototype: | `void omp_free(void *ptr,`
  | `omp_allocator_handle_t allocator)`

C++:

  Prototype: | `void omp_free(void *ptr,`
  | `omp_allocator_handle_t allocator=omp_null_allocator)`

Fortran:

  Interface: | `subroutine omp_free(ptr, allocator) bind(C)`
  | `use, intrinsic :: iso_c_binding, only : c_ptr`
  | `type (c_ptr), value :: ptr`
  | `integer (omp_allocator_handle_kind), value :: allocator`

See also:

  `omp_alloc` – Memory allocation with an allocator, `omp_aligned_alloc` – Memory allocation with an allocator and alignment, `omp_calloc` – Allocate nullified memory with an allocator, `omp_aligned_calloc` – Allocate aligned nullified memory with an allocator, `omp_realloc` – Reallocate memory allocated with OpenMP routines

Reference:

  OpenMP specification v5.0, Section 3.7.7