re PR c++/28584 (Cast to pointer from integer of different size)

2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR c++/28584
	* c.opt (Wint-to-pointer-cast): Available in C++.
	* doc/invoke.texi (Wint-to-pointer-cast): Available in C++.
cp/
	* typeck.c (cp_build_c_cast): Warn for casting integer to larger
	pointer type.
testsuite/
	* gcc.dg/Wint-to-pointer-cast-1.c: Move to...
	* c-c++-common/Wint-to-pointer-cast-1.c: ...  here.
	* gcc.dg/Wint-to-pointer-cast-2.c: Move to...	
	* c-c++-common/Wint-to-pointer-cast-2.c: ...  here.
	* gcc.dg/Wint-to-pointer-cast-3.c: Move to...	
	* c-c++-common/Wint-to-pointer-cast-3.c: ...  here. Update.
	* g++.old-deja/g++.mike/warn1.C: Add -Wno-int-to-pointer-cast.
	* g++.dg/other/increment1.C: Likewise.

From-SVN: r158150

1 files changed, 12 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/Wint-to-pointer-cast-1.c b/gcc/testsuite/c-c++-common/Wint-to-pointer-cast-1.c
new file mode 100644
index 0000000..a7687a6
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/Wint-to-pointer-cast-1.c
@@ -0,0 +1,12 @@
+/* Test -Wint-to-pointer-cast - on by default.  */
+/* Origin: Joseph Myers <joseph@codesourcery.com> */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+char c;
+
+void *
+f (void)
+{
+  return (void *) c; /* { dg-warning "cast to pointer from integer of different size" } */
+}