test-stdbool.c		test-stdbool.c
	/* Test of <stdbool.h> substitute.		/* Test of <stdbool.h> substitute.
	Copyright (C) 2002-2007, 2009-2010 Free Software Foundation, Inc.		Copyright (C) 2002-2007, 2009-2014 Free Software Foundation, Inc.
	This program is free software: you can redistribute it and/or modify		This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by		it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 3 of the License, or		the Free Software Foundation; either version 3 of the License, or
	(at your option) any later version.		(at your option) any later version.
	This program is distributed in the hope that it will be useful,		This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of		but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.		GNU General Public License for more details.
	You should have received a copy of the GNU General Public License		You should have received a copy of the GNU General Public License
	along with this program. If not, see <http://www.gnu.org/licenses/>. * /		along with this program. If not, see <http://www.gnu.org/licenses/>. * /
	/* Written by Bruno Haible <bruno@clisp.org>, 2007. */		/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
			/* We want this test to succeed even when using gcc's -Werror; but to
			do that requires a pragma that didn't exist before 4.3.0. */
			#ifndef __GNUC__
			# define ADDRESS_CHECK_OKAY
			#elif __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)
			/* No way to silence -Waddress. */
			#else
			# pragma GCC diagnostic ignored "-Waddress"
			# define ADDRESS_CHECK_OKAY
			#endif
	#include <config.h>		#include <config.h>
	#include <stdbool.h>		#include <stdbool.h>
	#ifndef bool		#ifndef bool
	"error: bool is not defined"		"error: bool is not defined"
	#endif		#endif
	#ifndef false		#ifndef false
	"error: false is not defined"		"error: false is not defined"
	#endif		#endif
	skipping to change at line 42		skipping to change at line 53
	#ifndef true		#ifndef true
	"error: true is not defined"		"error: true is not defined"
	#endif		#endif
	#if true != 1		#if true != 1
	"error: true is not 1"		"error: true is not 1"
	#endif		#endif
	#ifndef __bool_true_false_are_defined		#ifndef __bool_true_false_are_defined
	"error: __bool_true_false_are_defined is not defined"		"error: __bool_true_false_are_defined is not defined"
	#endif		#endif
	#if 0 /* Cannot be guaranteed with gnulib's <stdbool.h>. */		/* Several tests cannot be guaranteed with gnulib's <stdbool.h>, at
			least, not for all compilers and compiler options. */
			#if HAVE_STDBOOL_H || 3 <= __GNUC__
	struct s { _Bool s: 1; _Bool t; } s;		struct s { _Bool s: 1; _Bool t; } s;
	#endif		#endif
	char a[true == 1 ? 1 : -1];		char a[true == 1 ? 1 : -1];
	char b[false == 0 ? 1 : -1];		char b[false == 0 ? 1 : -1];
	char c[__bool_true_false_are_defined == 1 ? 1 : -1];		char c[__bool_true_false_are_defined == 1 ? 1 : -1];
	#if 0 /* Cannot be guaranteed with gnulib's <stdbool.h>, at least,		#if HAVE_STDBOOL_H || 3 <= __GNUC__ /* See above. */
	not for all compilers. */
	char d[(bool) 0.5 == true ? 1 : -1];		char d[(bool) 0.5 == true ? 1 : -1];
			# ifdef ADDRESS_CHECK_OKAY /* Avoid gcc warning. */
			/* C99 may plausibly be interpreted as not requiring support for a cast fro
			m
			a variable's address to bool in a static initializer. So treat it like
			a
			GCC extension. */
			# ifdef __GNUC__
	bool e = &s;		bool e = &s;
			# endif
			# endif
	char f[(_Bool) 0.0 == false ? 1 : -1];		char f[(_Bool) 0.0 == false ? 1 : -1];
	#endif		#endif
	char g[true];		char g[true];
	char h[sizeof (_Bool)];		char h[sizeof (_Bool)];
	#if 0 /* See above. */		#if HAVE_STDBOOL_H || 3 <= __GNUC__ /* See above. */
	char i[sizeof s.t];		char i[sizeof s.t];
	#endif		#endif
	enum { j = false, k = true, l = false * true, m = true * 256 };		enum { j = false, k = true, l = false * true, m = true * 256 };
	_Bool n[m];		_Bool n[m];
	char o[sizeof n == m * sizeof n[0] ? 1 : -1];		char o[sizeof n == m * sizeof n[0] ? 1 : -1];
	char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];		char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
	#if 0 /* Cannot be guaranteed with gnulib's <stdbool.h>. */
	#if defined __xlc__ || defined __GNUC__
	/* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
	reported by James Lemley on 2005-10-05; see
	http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
	This test is not quite right, since xlc is allowed to
	reject this program, as the initializer for xlcbug is
	not one of the forms that C requires support for.
	However, doing the test right would require a run-time
	test, and that would make cross-compilation harder.
	Let us hope that IBM fixes the xlc bug, and also adds
	support for this kind of constant expression. In the
	meantime, this test will reject xlc, which is OK, since
	our stdbool.h substitute should suffice. We also test
	this with GCC, where it should work, to detect more
	quickly whether someone messes up the test in the
	future. */
	char digs[] = "0123456789";
	int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
	#endif
	#endif
	/* Catch a bug in an HP-UX C compiler. See		/* Catch a bug in an HP-UX C compiler. See
	http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html		http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
	http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html		http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
	*/		*/
	_Bool q = true;		_Bool q = true;
	_Bool *pq = &q;		_Bool *pq = &q;
	int		int
	main ()		main ()
	{		{
	return 0;		int error = 0;
			#if HAVE_STDBOOL_H || 3 <= __GNUC__ /* See above. */
			# ifdef ADDRESS_CHECK_OKAY /* Avoid gcc warning. */
			/* A cast from a variable's address to bool is valid in expressions. */
			{
			bool e1 = &s;
			if (!e1)
			error = 1;
			}
			# endif
			#endif
			/* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
			reported by James Lemley on 2005-10-05; see
			http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
			This is a runtime test, since a corresponding compile-time
			test would rely on initializer extensions. */
			{
			char digs[] = "0123456789";
			if (&(digs + 5)[-2 + (bool) 1] != &digs[4])
			error = 1;
			}
			return error;
	}		}
End of changes. 9 change blocks.
	27 lines changed or deleted		51 lines changed or added
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