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/* go-map-len.c -- return the length of a map.

   Copyright 2009 The Go Authors. All rights reserved.

   Use of this source code is governed by a BSD-style

   license that can be found in the LICENSE file.  */

#include <stddef.h>

#include "go-assert.h"

#include "map.h"

/* Return the length of a map.  This could be done inline, of course,

   but I'm doing it as a function for now to make it easy to change

   the map structure.  */

int

__go_map_len (struct __go_map *map)

{

  if (map == NULL)

    return 0;

  __go_assert (map->__element_count == (uintptr_t) (int) map->__element_count);

  return map->__element_count;

}