c-common.c (init_function_format_info): Add C99 format functions in C99 mode.

	* c-common.c (init_function_format_info): Add C99 format functions
	in C99 mode.

From-SVN: r35380

gcc/ChangeLog

 2000-07-31  Joseph S. Myers  <jsm28@cam.ac.uk>
 
+	* c-common.c (init_function_format_info): Add C99 format functions
+	in C99 mode.
+
 	* c-decl.c (get_parm_info): Don't treat 'const void', 'volatile
 	void' or 'register void' as being the special case of 'void' alone
 	in a parameter list.

gcc/c-common.c

@@ -1335,6 +1335,21 @@ init_function_format_info ()
   record_function_format (get_identifier ("strftime"), NULL_TREE,
 			  strftime_format_type, 3, 0);
 
+  if (flag_isoc99)
+    {
+      /* ISO C99 adds the snprintf and vscanf family functions.  */
+      record_function_format (get_identifier ("snprintf"), NULL_TREE,
+			      printf_format_type, 3, 4);
+      record_function_format (get_identifier ("vsnprintf"), NULL_TREE,
+			      printf_format_type, 3, 0);
+      record_function_format (get_identifier ("vscanf"), NULL_TREE,
+			      scanf_format_type, 1, 0);
+      record_function_format (get_identifier ("vfscanf"), NULL_TREE,
+			      scanf_format_type, 2, 0);
+      record_function_format (get_identifier ("vsscanf"), NULL_TREE,
+			      scanf_format_type, 2, 0);
+    }
+
   record_international_format (get_identifier ("gettext"), NULL_TREE, 1);
   record_international_format (get_identifier ("dgettext"), NULL_TREE, 2);
   record_international_format (get_identifier ("dcgettext"), NULL_TREE, 2);