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author | Jörg Frings-Fürst <debian@jff.email> | 2022-01-08 11:53:52 +0100 |
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committer | Jörg Frings-Fürst <debian@jff.email> | 2022-01-08 11:53:52 +0100 |
commit | fa838e76139763f902c7d27cb9e1d393ed6a15e4 (patch) | |
tree | 7d0ae09775ea950056193eaa2ca93844299d46f1 /lib/_Noreturn.h | |
parent | c78359d9542c86b972aac373efcf7bc7a8a560e5 (diff) | |
parent | 2959e59fab3bab834368adefd90bd4b1b094366b (diff) |
Merge branch 'feature/upstream' into develop
Diffstat (limited to 'lib/_Noreturn.h')
-rw-r--r-- | lib/_Noreturn.h | 43 |
1 files changed, 39 insertions, 4 deletions
diff --git a/lib/_Noreturn.h b/lib/_Noreturn.h index c44ad89b..e914627a 100644 --- a/lib/_Noreturn.h +++ b/lib/_Noreturn.h @@ -1,8 +1,43 @@ -#if !defined _Noreturn && __STDC_VERSION__ < 201112 -# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \ - || 0x5110 <= __SUNPRO_C) +/* A C macro for declaring that a function does not return. + Copyright (C) 2011-2022 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +#ifndef _Noreturn +# if (defined __cplusplus \ + && ((201103 <= __cplusplus && !(__GNUC__ == 4 && __GNUC_MINOR__ == 7)) \ + || (defined _MSC_VER && 1900 <= _MSC_VER)) \ + && 0) + /* [[noreturn]] is not practically usable, because with it the syntax + extern _Noreturn void func (...); + would not be valid; such a declaration would only be valid with 'extern' + and '_Noreturn' swapped, or without the 'extern' keyword. However, some + AIX system header files and several gnulib header files use precisely + this syntax with 'extern'. */ +# define _Noreturn [[noreturn]] +# elif ((!defined __cplusplus || defined __clang__) \ + && (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \ + || (!defined __STRICT_ANSI__ \ + && (4 < __GNUC__ + (7 <= __GNUC_MINOR__) \ + || (defined __apple_build_version__ \ + ? 6000000 <= __apple_build_version__ \ + : 3 < __clang_major__ + (5 <= __clang_minor__)))))) + /* _Noreturn works as-is. */ +# elif (2 < __GNUC__ + (8 <= __GNUC_MINOR__) || defined __clang__ \ + || 0x5110 <= __SUNPRO_C) # define _Noreturn __attribute__ ((__noreturn__)) -# elif 1200 <= _MSC_VER +# elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0) # define _Noreturn __declspec (noreturn) # else # define _Noreturn |