1 files changed, 32 insertions, 0 deletions
diff --git a/libgo/runtime/go-construct-map.c b/libgo/runtime/go-construct-map.c
new file mode 100644
index 0000000000..15497eadb5
--- /dev/null
+++ b/libgo/runtime/go-construct-map.c
@@ -0,0 +1,32 @@
+/* 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 <stdlib.h>
+
+#include "map.h"
+
+struct __go_map *
+__go_construct_map (const struct __go_map_descriptor *descriptor,
+		    size_t count, size_t entry_size, size_t val_offset,
+		    size_t val_size, const void *ventries)
+{
+  struct __go_map *ret;
+  const unsigned char *entries;
+  size_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;
+}