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authorghazi <ghazi@138bc75d-0d04-0410-961f-82ee72b054a4>2004-09-05 02:50:09 +0000
committerghazi <ghazi@138bc75d-0d04-0410-961f-82ee72b054a4>2004-09-05 02:50:09 +0000
commitbf6c8de0ca844fe49b07d807047b6e648772c04b (patch)
tree616590e443b211fdf7309d929fce3872a4ff3f15 /include/ansidecl.h
parentb1d422af2ac49ae61000c4377ba4a8ae8f7ca3e2 (diff)
downloadgcc-bf6c8de0ca844fe49b07d807047b6e648772c04b.tar.gz
gcc:
* builtin-attrs.def (ATTR_SENTINEL, ATTR_SENTINEL_NOTHROW_LIST): New. * builtins.def (BUILT_IN_EXECL, BUILT_IN_EXECLP): Add `sentinel' attribute. * c-common.c (handle_sentinel_attribute, check_function_sentinel): New functions. (c_common_attribute_table): Add `sentinel' attribute. (check_function_arguments): Handle `sentinel' attribute. * doc/extend.texi: Document `sentinel' attribute. gcc/testsuite: * gcc.dg/format/sentinel-1.c: New test. include: * ansidecl.h (ATTRIBUTE_SENTINEL): Define. * libiberty.h (concat, reconcat, concat_length, concat_copy, concat_copy2): Use ATTRIBUTE_SENTINEL. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87096 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'include/ansidecl.h')
-rw-r--r--include/ansidecl.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/ansidecl.h b/include/ansidecl.h
index ccf0b2757ae..04c3a30bb53 100644
--- a/include/ansidecl.h
+++ b/include/ansidecl.h
@@ -322,6 +322,15 @@ So instead we use the macro below and test it against specific values. */
# define ATTRIBUTE_NULL_PRINTF_5 ATTRIBUTE_NULL_PRINTF(5, 6)
#endif /* ATTRIBUTE_NULL_PRINTF */
+/* Attribute `sentinel' was valid as of gcc 3.5. */
+#ifndef ATTRIBUTE_SENTINEL
+# if (GCC_VERSION >= 3005)
+# define ATTRIBUTE_SENTINEL __attribute__ ((__sentinel__))
+# else
+# define ATTRIBUTE_SENTINEL
+# endif /* GNUC >= 3.5 */
+#endif /* ATTRIBUTE_SENTINEL */
+
/* We use __extension__ in some places to suppress -pedantic warnings
about GCC extensions. This feature didn't work properly before
gcc 2.8. */