[Bug c++/19542] attribute(sentinel) has problems with C++ __null

["cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-05-02 04:23 -------
Subject: Bug 19542

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	matz@gcc.gnu.org	2005-05-02 04:22:57

Modified files:
	gcc            : c-common.c c-common.h c-opts.c c.opt ChangeLog 
	gcc/doc        : invoke.texi 
	gcc/cp         : cp-tree.h lex.c ChangeLog 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/warn: sentinel.C 

Log message:
	PR c++/19542
	* c-common.c (c_common_nodes_and_builtins): Create global null_node.
	(warn_strict_null_sentinel): Define.
	(check_function_sentinel): Check for null_node as valid sentinel too.
	* c-common.h (c_tree_index): Added CTI_NULL.
	(null_node) Define global_tree[CTI_NULL].
	(warn_strict_null_sentinel): Declare.
	* c-opts.c: (c_common_handle_option): Handle -Wstrict-null-sentinel.
	* c.opt: (Wstrict-null-sentinel): New C++ option.
	* doc/invoke.texi (C++ Options): Document -Wstrict-null-sentinel.
	
	* cp-tree.h (cp_tree_index): Remove CPTI_NULL, to be defined in C
	common frontend.
	(null_node): Remove.
	* lex.c (cxx_init): Move null_node initialisation to C common frontend.
	
	* g++.dg/warn/sentinel.C: New testcase for __null sentinels added.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-common.c.diff?cvsroot=gcc&r1=1.625&r2=1.626
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-common.h.diff?cvsroot=gcc&r1=1.288&r2=1.289
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-opts.c.diff?cvsroot=gcc&r1=1.142&r2=1.143
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c.opt.diff?cvsroot=gcc&r1=1.41&r2=1.42
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8553&r2=2.8554
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/invoke.texi.diff?cvsroot=gcc&r1=1.610&r2=1.611
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cp-tree.h.diff?cvsroot=gcc&r1=1.1131&r2=1.1132
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/lex.c.diff?cvsroot=gcc&r1=1.355&r2=1.356
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4724&r2=1.4725
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/warn/sentinel.C.diff?cvsroot=gcc&r1=1.1&r2=1.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5423&r2=1.5424



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19542