From c53485bbb81a5ddaeeceb228bb0ed1328b5c2e0e Mon Sep 17 00:00:00 2001 From: jakub Date: Wed, 20 Feb 2002 22:54:35 +0000 Subject: PR c/4389 * tree.c (host_integerp): Ensure that the constant integer is representable in a HOST_WIDE_INT or an unsigned HOST_WIDE_INT when pos is zero or non-zero respectively. Clarify comment. * c-format.c (check_format_info_recurse): Fix host_integerp usage; the pos argument should be zero when assigning to a signed HOST_WIDE_INT. * gcc.dg/20020219-1.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49914 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/c-format.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'gcc/c-format.c') diff --git a/gcc/c-format.c b/gcc/c-format.c index b15b6300563..d52cfba7c70 100644 --- a/gcc/c-format.c +++ b/gcc/c-format.c @@ -1,6 +1,6 @@ /* Check calls to formatted I/O functions (-Wformat). - Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. + Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, + 2001, 2002 Free Software Foundation, Inc. This file is part of GCC. @@ -1516,13 +1516,12 @@ check_format_info_recurse (status, res, info, format_tree, params, arg_num) res->number_non_literal++; return; } - if (!host_integerp (arg1, 1)) + if (!host_integerp (arg1, 0) + || (offset = tree_low_cst (arg1, 0)) < 0) { res->number_non_literal++; return; } - - offset = TREE_INT_CST_LOW (arg1); } if (TREE_CODE (format_tree) != ADDR_EXPR) { -- cgit v1.2.1