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[PATCHv2,C++] Warn on redefinition of builtin functions (PR c++/71973)

Message ID 20161121185614.GJ3541@tucnak.redhat.com
State New
Headers show

Commit Message

Jakub Jelinek Nov. 21, 2016, 6:56 p.m. UTC 
On Sat, Nov 19, 2016 at 11:11:18AM +0000, Bernd Edlinger wrote:
> 2016-11-19  Bernd Edlinger  <bernd.edlinger@hotmail.de>
> 
> 	PR c++/71973
> 	* doc/invoke.texi (-Wno-builtin-declaration-mismatch): Document the
> 	new default-enabled warning..
> 	* builtin-types.def (BT_CONST_TM_PTR): New primitive type.
> 	(BT_PTR_CONST_STRING): Updated.
> 	(BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_PTR): Removed.
> 	(BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_TM_PTR): New function type.
> 	* builtins.def (DEF_TM_BUILTIN): Disable BOTH_P for TM builtins.
> 	(strftime): Update builtin function.
> 	* tree-core.h (TI_CONST_TM_PTR_TYPE): New enum value.
> 	* tree.h (const_tm_ptr_type_node): New type node.
> 	* tree.c (free_lang_data, build_common_tree_nodes): Initialize
> 	const_tm_ptr_type_node.
...

This broke 2 tests on i686-linux, I've committed this as obvious to fix it:

2016-11-21  Jakub Jelinek  <jakub@redhat.com>

	PR c++/71973
	* g++.dg/torture/pr53321.C (size_t): Use __SIZE_TYPE__ instead of
	long unsigned int.
	* g++.dg/torture/pr63512.C (::strlen): Use __SIZE_TYPE__ instead of
	unsigned long.



	Jakub
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Patch

--- gcc/testsuite/g++.dg/torture/pr53321.C.jj	2012-07-16 14:38:22.514585151 +0200
+++ gcc/testsuite/g++.dg/torture/pr53321.C	2016-11-21 19:52:00.561899801 +0100
@@ -2,7 +2,7 @@ 
 // { dg-require-profiling "-fprofile-generate" }
 // { dg-options "-fprofile-generate" }
 
-typedef long unsigned int size_t;
+typedef __SIZE_TYPE__ size_t;
 
 extern "C"
 {
--- gcc/testsuite/g++.dg/torture/pr63512.C.jj	2014-10-15 12:28:16.417303928 +0200
+++ gcc/testsuite/g++.dg/torture/pr63512.C	2016-11-21 19:52:45.006330942 +0100
@@ -2,7 +2,7 @@ 
 
 extern "C" {
 void __assert_fail ();
-unsigned long strlen (const char *);
+__SIZE_TYPE__ strlen (const char *);
 }
 class A
 {