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authorLorry Tar Creator <lorry-tar-importer@baserock.org>2013-09-22 07:04:10 +0000
committer <>2015-02-02 12:02:31 +0000
commit23c11479b3ad787adc7a651ee0c4347839e47723 (patch)
tree3aa9e1125da84f7e3bd764bbff577c42a766508b /lib/msvc-nothrow.h
downloadm4-tarball-23c11479b3ad787adc7a651ee0c4347839e47723.tar.gz
Imported from /home/lorry/working-area/delta_m4-tarball/m4-1.4.17.tar.xz.HEADm4-1.4.17master
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+/* Wrappers that don't throw invalid parameter notifications
+ with MSVC runtime libraries.
+ Copyright (C) 2011-2013 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, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _MSVC_NOTHROW_H
+#define _MSVC_NOTHROW_H
+
+/* With MSVC runtime libraries with the "invalid parameter handler" concept,
+ functions like fprintf(), dup2(), or close() crash when the caller passes
+ an invalid argument. But POSIX wants error codes (such as EINVAL or EBADF)
+ instead.
+ This file defines wrappers that turn such an invalid parameter notification
+ into an error code. */
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+
+/* Get original declaration of _get_osfhandle. */
+# include <io.h>
+
+# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
+
+/* Override _get_osfhandle. */
+extern intptr_t _gl_nothrow_get_osfhandle (int fd);
+# define _get_osfhandle _gl_nothrow_get_osfhandle
+
+# endif
+
+#endif
+
+#endif /* _MSVC_NOTHROW_H */