gcc/libgo/runtime/go-typedesc-equal.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

39 lines
1.3 KiB
C

/* go-typedesc-equal.c -- return whether two type descriptors are equal.
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 "go-type.h"
/* Compare type descriptors for equality. This is necessary because
types may have different descriptors in different shared libraries.
Also, unnamed types may have multiple type descriptors even in a
single shared library. */
_Bool
__go_type_descriptors_equal (const struct __go_type_descriptor *td1,
const struct __go_type_descriptor *td2)
{
if (td1 == td2)
return 1;
/* In a type switch we can get a NULL descriptor. */
if (td1 == NULL || td2 == NULL)
return 0;
if (td1->__code != td2->__code || td1->__hash != td2->__hash)
return 0;
if (td1->__uncommon != NULL && td1->__uncommon->__name != NULL)
{
if (td2->__uncommon == NULL || td2->__uncommon->__name == NULL)
return 0;
return (__go_ptr_strings_equal (td1->__uncommon->__name,
td2->__uncommon->__name)
&& __go_ptr_strings_equal (td1->__uncommon->__pkg_path,
td2->__uncommon->__pkg_path));
}
if (td2->__uncommon != NULL && td2->__uncommon->__name != NULL)
return 0;
return __go_ptr_strings_equal (td1->__reflection, td2->__reflection);
}