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Diffstat (limited to 'gnulib-m4/stdbool.m4')
-rw-r--r--gnulib-m4/stdbool.m460
1 files changed, 34 insertions, 26 deletions
diff --git a/gnulib-m4/stdbool.m4 b/gnulib-m4/stdbool.m4
index 7273b822..2a9b1db8 100644
--- a/gnulib-m4/stdbool.m4
+++ b/gnulib-m4/stdbool.m4
@@ -1,11 +1,11 @@
# Check for stdbool.h that conforms to C99.
-dnl Copyright (C) 2002-2006, 2009-2015 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
-#serial 5
+#serial 7
# Prepare for substituting <stdbool.h> if it is not supported.
@@ -43,56 +43,64 @@ AC_DEFUN([AC_CHECK_HEADER_STDBOOL],
[AC_LANG_PROGRAM(
[[
#include <stdbool.h>
- #ifndef bool
- "error: bool is not defined"
- #endif
- #ifndef false
- "error: false is not defined"
- #endif
- #if false
- "error: false is not 0"
- #endif
- #ifndef true
- "error: true is not defined"
- #endif
- #if true != 1
- "error: true is not 1"
+
+ #ifdef __cplusplus
+ typedef bool Bool;
+ #else
+ typedef _Bool Bool;
+ #ifndef bool
+ "error: bool is not defined"
+ #endif
+ #ifndef false
+ "error: false is not defined"
+ #endif
+ #if false
+ "error: false is not 0"
+ #endif
+ #ifndef true
+ "error: true is not defined"
+ #endif
+ #if true != 1
+ "error: true is not 1"
+ #endif
#endif
+
#ifndef __bool_true_false_are_defined
"error: __bool_true_false_are_defined is not defined"
#endif
- struct s { _Bool s: 1; _Bool t; } s;
+ struct s { Bool s: 1; Bool t; bool u: 1; bool v; } s;
char a[true == 1 ? 1 : -1];
char b[false == 0 ? 1 : -1];
char c[__bool_true_false_are_defined == 1 ? 1 : -1];
char d[(bool) 0.5 == true ? 1 : -1];
/* See body of main program for 'e'. */
- char f[(_Bool) 0.0 == false ? 1 : -1];
+ char f[(Bool) 0.0 == false ? 1 : -1];
char g[true];
- char h[sizeof (_Bool)];
+ char h[sizeof (Bool)];
char i[sizeof s.t];
enum { j = false, k = true, l = false * true, m = true * 256 };
/* The following fails for
HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
- _Bool n[m];
+ Bool n[m];
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];
/* Catch a bug in an HP-UX C compiler. See
http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
*/
- _Bool q = true;
- _Bool *pq = &q;
+ Bool q = true;
+ Bool *pq = &q;
+ bool *qq = &q;
]],
[[
bool e = &s;
- *pq |= q;
- *pq |= ! q;
+ *pq |= q; *pq |= ! q;
+ *qq |= q; *qq |= ! q;
/* Refer to every declared value, to avoid compiler optimizations. */
return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
- + !m + !n + !o + !p + !q + !pq);
+ + !m + !n + !o + !p + !q + !pq + !qq);
]])],
[ac_cv_header_stdbool_h=yes],
[ac_cv_header_stdbool_h=no])])