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[/] [openrisc/] [tags/] [gnu-src/] [gdb-7.2/] [gdb-7.2-or32-1.0rc1/] [gdb/] [gnulib/] [stddef.in.h] - Rev 341
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/* A substitute for POSIX 2008 <stddef.h>, for platforms that have issues. Copyright (C) 2009, 2010 Free Software Foundation, Inc. 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 the Free Software Foundation; either version 3, 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* Written by Eric Blake. */ /* * POSIX 2008 <stddef.h> for platforms that have issues. * <http://www.opengroup.org/susv3xbd/stddef.h.html> */ #if __GNUC__ >= 3 @PRAGMA_SYSTEM_HEADER@ #endif #if defined __need_wchar_t || defined __need_size_t \ || defined __need_ptrdiff_t || defined __need_NULL \ || defined __need_wint_t /* Special invocation convention inside gcc header files. In particular, gcc provides a version of <stddef.h> that blindly redefines NULL even when __need_wint_t was defined, even though wint_t is not normally provided by <stddef.h>. Hence, we must remember if special invocation has ever been used to obtain wint_t, in which case we need to clean up NULL yet again. */ # if !(defined _GL_STDDEF_H && defined _GL_STDDEF_WINT_T) # ifdef __need_wint_t # undef _GL_STDDEF_H # define _GL_STDDEF_WINT_T # endif # @INCLUDE_NEXT@ @NEXT_STDDEF_H@ # endif #else /* Normal invocation convention. */ # ifndef _GL_STDDEF_H /* The include_next requires a split double-inclusion guard. */ # @INCLUDE_NEXT@ @NEXT_STDDEF_H@ # ifndef _GL_STDDEF_H # define _GL_STDDEF_H /* On NetBSD 5.0, the definition of NULL lacks proper parentheses. */ #if @REPLACE_NULL@ # undef NULL # ifdef __cplusplus /* ISO C++ says that the macro NULL must expand to an integer constant expression, hence '((void *) 0)' is not allowed in C++. */ # if __GNUG__ >= 3 /* GNU C++ has a __null macro that behaves like an integer ('int' or 'long') but has the same size as a pointer. Use that, to avoid warnings. */ # define NULL __null # else # define NULL 0L # endif # else # define NULL ((void *) 0) # endif #endif /* Some platforms lack wchar_t. */ #if !@HAVE_WCHAR_T@ # define wchar_t int #endif # endif /* _GL_STDDEF_H */ # endif /* _GL_STDDEF_H */ #endif /* __need_XXX */