gcc/libgo/runtime/go-type-string.c
Ian Lance Taylor 7a9389330e Add Go frontend, libgo library, and Go testsuite.
gcc/:
	* gcc.c (default_compilers): Add entry for ".go".
	* common.opt: Add -static-libgo as a driver option.
	* doc/install.texi (Configuration): Mention libgo as an option for
	--enable-shared.  Mention go as an option for --enable-languages.
	* doc/invoke.texi (Overall Options): Mention .go as a file name
	suffix.  Mention go as a -x option.
	* doc/frontends.texi (G++ and GCC): Mention Go as a supported
	language.
	* doc/sourcebuild.texi (Top Level): Mention libgo.
	* doc/standards.texi (Standards): Add section on Go language.
	Move references for other languages into their own section.
	* doc/contrib.texi (Contributors): Mention that I contributed the
	Go frontend.
gcc/testsuite/:
	* lib/go.exp: New file.
	* lib/go-dg.exp: New file.
	* lib/go-torture.exp: New file.
	* lib/target-supports.exp (check_compile): Match // Go.

From-SVN: r167407
2010-12-03 04:34:57 +00:00

46 lines
1.1 KiB
C

/* go-type-string.c -- hash and equality string functions.
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 "go-string.h"
#include "go-type.h"
/* A string hash function for a map. */
size_t
__go_type_hash_string (const void *vkey,
size_t key_size __attribute__ ((unused)))
{
size_t ret;
const struct __go_string *key;
size_t len;
size_t i;
const unsigned char *p;
ret = 5381;
key = (const struct __go_string *) vkey;
len = key->__length;
for (i = 0, p = key->__data; i < len; i++, p++)
ret = ret * 33 + *p;
return ret;
}
/* A string equality function for a map. */
_Bool
__go_type_equal_string (const void *vk1, const void *vk2,
size_t key_size __attribute__ ((unused)))
{
const struct __go_string *k1;
const struct __go_string *k2;
k1 = (const struct __go_string *) vk1;
k2 = (const struct __go_string *) vk2;
return (k1->__length == k2->__length
&& __builtin_memcmp (k1->__data, k2->__data, k1->__length) == 0);
}