X-Git-Url: https://git.gag.com/?a=blobdiff_plain;ds=sidebyside;f=m4%2Fstdbool.m4;h=f8c057760f25691c8d643a5ca83932fa15af99be;hb=a8a88eddaa90432e6ec1b8d9d5c9842bc91afd1d;hp=625520ff078bbe1ae4c3c93a546d9f14abedfdb9;hpb=20fcfc81ece044b8b0a6768ec6cf47be4e22a2e6;p=debian%2Fgzip diff --git a/m4/stdbool.m4 b/m4/stdbool.m4 index 625520f..f8c0577 100644 --- a/m4/stdbool.m4 +++ b/m4/stdbool.m4 @@ -1,11 +1,11 @@ # Check for stdbool.h that conforms to C99. -dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc. +dnl Copyright (C) 2002-2006, 2009-2018 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 if it is not supported. @@ -43,56 +43,64 @@ AC_DEFUN([AC_CHECK_HEADER_STDBOOL], [AC_LANG_PROGRAM( [[ #include - #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 + https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html + https://lists.gnu.org/r/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])])