From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libgo/runtime/map.goc | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 libgo/runtime/map.goc (limited to 'libgo/runtime/map.goc') diff --git a/libgo/runtime/map.goc b/libgo/runtime/map.goc new file mode 100644 index 000000000..d6308cbd3 --- /dev/null +++ b/libgo/runtime/map.goc @@ -0,0 +1,69 @@ +// Copyright 2010 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. + +package runtime +#include "map.h" +#define nil NULL + +typedef unsigned char byte; +typedef _Bool bool; + +typedef struct __go_map hmap; +typedef struct __go_hash_iter hiter; + +/* Access a value in a map, returning a value and a presence indicator. */ + +func mapaccess2(h *hmap, key *byte, val *byte) (present bool) { + byte *mapval; + size_t valsize; + + mapval = __go_map_index(h, key, 0); + valsize = h->__descriptor->__map_descriptor->__val_type->__size; + if (mapval == nil) { + __builtin_memset(val, 0, valsize); + present = 0; + } else { + __builtin_memcpy(val, mapval, valsize); + present = 1; + } +} + +/* Optionally assign a value to a map (m[k] = v, p). */ + +func mapassign2(h *hmap, key *byte, val *byte, p bool) { + if (!p) { + __go_map_delete(h, key); + } else { + byte *mapval; + size_t valsize; + + mapval = __go_map_index(h, key, 1); + valsize = h->__descriptor->__map_descriptor->__val_type->__size; + __builtin_memcpy(mapval, val, valsize); + } +} + +/* Initialize a range over a map. */ + +func mapiterinit(h *hmap, it *hiter) { + __go_mapiterinit(h, it); +} + +/* Move to the next iteration, updating *HITER. */ + +func mapiternext(it *hiter) { + __go_mapiternext(it); +} + +/* Get the key of the current iteration. */ + +func mapiter1(it *hiter, key *byte) { + __go_mapiter1(it, key); +} + +/* Get the key and value of the current iteration. */ + +func mapiter2(it *hiter, key *byte, val *byte) { + __go_mapiter2(it, key, val); +} -- cgit v1.2.3