gcc/libgo/runtime/go-strplus.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

31 lines
789 B
C

/* go-strplus.c -- the go string append function.
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 "go-string.h"
#include "runtime.h"
#include "malloc.h"
struct __go_string
__go_string_plus (struct __go_string s1, struct __go_string s2)
{
int len;
unsigned char *retdata;
struct __go_string ret;
if (s1.__length == 0)
return s2;
else if (s2.__length == 0)
return s1;
len = s1.__length + s2.__length;
retdata = runtime_mallocgc (len, RefNoPointers, 1, 0);
__builtin_memcpy (retdata, s1.__data, s1.__length);
__builtin_memcpy (retdata + s1.__length, s2.__data, s2.__length);
ret.__data = retdata;
ret.__length = len;
return ret;
}