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re PR c++/13070 (-Wformat option ignored in g++) 

PR c++/13070
	* decl.c (duplicate_decls): When setting the type of an anticipated
	declaration, merge the existing type attributes.

	* g++.dg/warn/format3.C: New test case.

From-SVN: r75185
This commit is contained in:
Roger Sayle 2003-12-28 22:22:13 +00:00 committed by Roger Sayle
parent 9f88b919e0
commit 7072018ecf
4 changed files with 29 additions and 1 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2003-12-28 Roger Sayle <roger@eyesopen.com>
PR c++/13070
* decl.c (duplicate_decls): When setting the type of an anticipated
declaration, merge the existing type attributes.
2003-12-25 Andrew Pinski <pinskia@physics.uc.edu>
PR c++/13268, c++/13339

7
gcc/cp/decl.c
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@ -1261,7 +1261,12 @@ duplicate_decls (tree newdecl, tree olddecl)
/* Even if the types match, prefer the new declarations type
for anticipated built-ins, for exception lists, etc... */
else if (DECL_ANTICIPATED (olddecl))
TREE_TYPE (olddecl) = TREE_TYPE (newdecl);
{
TYPE_ATTRIBUTES (TREE_TYPE (newdecl))
= (*targetm.merge_type_attributes) (TREE_TYPE (olddecl),
TREE_TYPE (newdecl));
TREE_TYPE (olddecl) = TREE_TYPE (newdecl);
}
/* Whether or not the builtin can throw exceptions has no
bearing on this declarator. */

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2003-12-28 Roger Sayle <roger@eyesopen.com>
PR c++/13070
* g++.dg/warn/format3.C: New test case.
2003-12-27 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
* gcc.c-torture/compile/20031227-1.c: New test.

12
gcc/testsuite/g++.dg/warn/format3.C Normal file
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@ -0,0 +1,12 @@
// PR c++/13070
// { dg-do compile }
// { dg-options "-Wformat" }
extern "C" int printf (const char*, ...);
int main()
{
printf("%d\n", 1, 1); // { dg-warning "too many" "printf warning" }
return 0;
}