1  /* go-construct-map.c -- construct a map from an initializer.
       2  
       3     Copyright 2009 The Go Authors. All rights reserved.
       4     Use of this source code is governed by a BSD-style
       5     license that can be found in the LICENSE file.  */
       6  
       7  #include <stddef.h>
       8  #include <stdint.h>
       9  #include <stdlib.h>
      10  
      11  #include "runtime.h"
      12  
      13  extern void *makemap (const struct maptype *, intgo hint, void *)
      14    __asm__ (GOSYM_PREFIX "runtime.makemap");
      15  
      16  extern void *mapassign (const struct maptype *, void *hmap, const void *key)
      17    __asm__ (GOSYM_PREFIX "runtime.mapassign");
      18  
      19  void *
      20  __go_construct_map (const struct maptype *type, uintptr_t count,
      21  		    uintptr_t entry_size, uintptr_t val_offset,
      22  		    const void *ventries)
      23  {
      24    void *ret;
      25    const unsigned char *entries;
      26    uintptr_t i;
      27    void *p;
      28  
      29    ret = makemap(type, (intgo) count, NULL);
      30  
      31    entries = (const unsigned char *) ventries;
      32    for (i = 0; i < count; ++i)
      33      {
      34        p = mapassign (type, ret, entries);
      35        typedmemmove (type->elem, p, entries + val_offset);
      36        entries += entry_size;
      37      }
      38  
      39    return ret;
      40  }