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- /* A substitute for ISO C11 <stdnoreturn.h>.
- Copyright 2012-2016 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 2.1, 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 <http://www.gnu.org/licenses/>. */
- /* Written by Paul Eggert. */
- #ifndef noreturn
- /* ISO C11 <stdnoreturn.h> for platforms that lack it.
- References:
- ISO C11 (latest free draft
- <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf>)
- section 7.23 */
- /* The definition of _Noreturn is copied here. */
- #if 1200 <= _MSC_VER
- /* Standard include files on this platform contain declarations like
- "__declspec (noreturn) void abort (void);". "#define noreturn
- _Noreturn" would cause this declaration to be rewritten to the
- invalid "__declspec (__declspec (noreturn)) void abort (void);".
- Instead, define noreturn to empty, so that such declarations are
- rewritten to "__declspec () void abort (void);", which is
- equivalent to "void abort (void);"; this gives up on noreturn's
- advice to the compiler but at least it is valid code. */
- # define noreturn /*empty*/
- #else
- # define noreturn _Noreturn
- #endif
- /* Did he ever return?
- No he never returned
- And his fate is still unlearn'd ...
- -- Steiner J, Hawes BL. M.T.A. (1949) */
- #endif /* noreturn */
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