gcc/libgo/runtime/go-construct-map.c

36 lines
897 B
C

/* go-construct-map.c -- construct a map from an initializer.
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 <stdint.h>
#include <stdlib.h>
#include "runtime.h"
#include "map.h"
struct __go_map *
__go_construct_map (const struct __go_map_descriptor *descriptor,
uintptr_t count, uintptr_t entry_size,
uintptr_t val_offset, uintptr_t val_size,
const void *ventries)
{
struct __go_map *ret;
const unsigned char *entries;
uintptr_t i;
ret = __go_new_map (descriptor, count);
entries = (const unsigned char *) ventries;
for (i = 0; i < count; ++i)
{
void *val = __go_map_index (ret, entries, 1);
__builtin_memcpy (val, entries + val_offset, val_size);
entries += entry_size;
}
return ret;
}