26 lines
660 B
C
26 lines
660 B
C
/* go-map-len.c -- return the length of a map.
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Copyright 2009 The Go Authors. All rights reserved.
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file. */
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#include <stddef.h>
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#include "runtime.h"
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#include "go-assert.h"
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#include "map.h"
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/* Return the length of a map. This could be done inline, of course,
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but I'm doing it as a function for now to make it easy to change
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the map structure. */
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intgo
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__go_map_len (struct __go_map *map)
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{
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if (map == NULL)
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return 0;
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__go_assert (map->__element_count
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== (uintptr_t) (intgo) map->__element_count);
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return map->__element_count;
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}
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