re PR c++/50757 (Cannot turn off -Wnonnull when using C++)

/gcc
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50757
	* c-family/c.opt ([Wnonnull]): Add C++ and Objective-C++.
	* doc/invoke.texi: Update.

/testsuite
2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/50757
	* g++.dg/warn/format7.C: New.
	* obj-c++.dg/warn7.mm: Likewise.

From-SVN: r180101

gcc/c-family/c.opt

@@ -510,7 +510,7 @@ C++ ObjC++ Var(warn_nonvdtor) Warning
 Warn about non-virtual destructors
 
 Wnonnull
-C ObjC Var(warn_nonnull) Warning
+C ObjC C++ ObjC++ Var(warn_nonnull) Warning
 Warn about NULL being passed to argument slots marked as requiring non-NULL
 
 Wnormalized=

gcc/doc/invoke.texi

@@ -3223,7 +3223,7 @@ Enable @option{-Wformat} plus format checks not included in
 @option{-Wformat}.  Currently equivalent to @samp{-Wformat
 -Wformat-nonliteral -Wformat-security -Wformat-y2k}.
 
-@item -Wnonnull @r{(C and Objective-C only)}
+@item -Wnonnull
 @opindex Wnonnull
 @opindex Wno-nonnull
 Warn about passing a null pointer for arguments marked as

gcc/testsuite/ChangeLog

+2011-10-17  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/50757
+	* g++.dg/warn/format7.C: New.
+	* obj-c++.dg/warn7.mm: Likewise.
+
 2011-10-17  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/50729

gcc/testsuite/g++.dg/warn/format7.C

+// PR c++/50757
+// { dg-options "-Wformat -Wno-nonnull" }
+
+extern void *f (void *__s) __attribute__ ((__nonnull__ (1)));
+
+int main()
+{
+  void* const s = 0;
+  f(s);
+}

gcc/testsuite/obj-c++.dg/warn7.mm

+// PR c++/50757
+// { dg-options "-Wformat -Wno-nonnull" }
+
+extern void *f (void *__s) __attribute__ ((__nonnull__ (1)));
+
+int main()
+{
+  void* const s = 0;
+  f(s);
+}