summaryrefslogtreecommitdiff
path: root/build-aux/snippet/arg-nonnull.h
diff options
context:
space:
mode:
authorLi Jinjing <jinjingx.li@intel.com>2014-10-26 22:28:15 +0800
committerLi Jinjing <jinjingx.li@intel.com>2014-10-26 22:28:15 +0800
commit931b01b091932a1f796c23379ea32abb68bd5895 (patch)
tree3aa9e1125da84f7e3bd764bbff577c42a766508b /build-aux/snippet/arg-nonnull.h
parent7be93f2d05131d061bd4790ae33c8d50f50010d7 (diff)
downloadm4-931b01b091932a1f796c23379ea32abb68bd5895.tar.gz
m4-931b01b091932a1f796c23379ea32abb68bd5895.tar.bz2
m4-931b01b091932a1f796c23379ea32abb68bd5895.zip
Imported Upstream version 1.4.17upstream/1.4.17sandbox/jinjingx/upstream
Diffstat (limited to 'build-aux/snippet/arg-nonnull.h')
-rw-r--r--build-aux/snippet/arg-nonnull.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/build-aux/snippet/arg-nonnull.h b/build-aux/snippet/arg-nonnull.h
new file mode 100644
index 0000000..8ea2a47
--- /dev/null
+++ b/build-aux/snippet/arg-nonnull.h
@@ -0,0 +1,26 @@
+/* A C macro for declaring that specific arguments must not be NULL.
+ Copyright (C) 2009-2013 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 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
+ 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/>. */
+
+/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
+ that the values passed as arguments n, ..., m must be non-NULL pointers.
+ n = 1 stands for the first argument, n = 2 for the second argument etc. */
+#ifndef _GL_ARG_NONNULL
+# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
+# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
+# else
+# define _GL_ARG_NONNULL(params)
+# endif
+#endif