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re PR c++/17041 (Erroneous "suggest parentheses around assignment used as truth value" warning in template members.)

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PR c++/17041
	* pt.c (tsubst_copy, tsubst_copy_and_build): Copy TREE_NO_WARNING
	from input for MODOP_EXPR.

testsuite:
	* g++.dg/Wparentheses-3.C: New test.

From-SVN: r86241
This commit is contained in:
Joseph Myers 2004-08-19 09:01:50 +01:00 committed by Joseph Myers
parent 7a8554ceac
commit e4c2c34bf1
4 changed files with 33 additions and 4 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2004-08-19 Joseph S. Myers <jsm@polyomino.org.uk>
PR c++/17041
* pt.c (tsubst_copy, tsubst_copy_and_build): Copy TREE_NO_WARNING
from input for MODOP_EXPR.
2004-08-18 Mark Mitchell <mark@codesourcery.com>
* pt.c (dependent_template_p): Fix typo in commment.

13
gcc/cp/pt.c
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@ -7667,6 +7667,7 @@ tsubst_copy (tree t, tree args, tsubst_flags_t complain, tree in_decl)
(code, tsubst_copy (TREE_OPERAND (t, 0), args, complain, in_decl),
tsubst_copy (TREE_OPERAND (t, 1), args, complain, in_decl),
tsubst_copy (TREE_OPERAND (t, 2), args, complain, in_decl));
TREE_NO_WARNING (r) = TREE_NO_WARNING (t);
return r;
}
@ -8331,10 +8332,14 @@ tsubst_copy_and_build (tree t,
return cxx_sizeof_or_alignof_expr (op1, TREE_CODE (t));
case MODOP_EXPR:
return build_x_modify_expr
(RECUR (TREE_OPERAND (t, 0)),
TREE_CODE (TREE_OPERAND (t, 1)),
RECUR (TREE_OPERAND (t, 2)));
{
tree r = build_x_modify_expr
(RECUR (TREE_OPERAND (t, 0)),
TREE_CODE (TREE_OPERAND (t, 1)),
RECUR (TREE_OPERAND (t, 2)));
TREE_NO_WARNING (r) = TREE_NO_WARNING (t);
return r;
}
case ARROW_EXPR:
op1 = tsubst_non_call_postfix_expression (TREE_OPERAND (t, 0),

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2004-08-19 Joseph S. Myers <jsm@polyomino.org.uk>
PR c++/17041
* g++.dg/Wparentheses-3.C: New test.
2004-08-19 Dorit Naishlos <dorit@il.ibm.com>
* gcc.dg/vect/vect-1.c: Remove xfail from i?86-*-* x86_64-*-* due

13
gcc/testsuite/g++.dg/warn/Wparentheses-3.C Normal file
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@ -0,0 +1,13 @@
// Test that -Wparentheses does not give bogus warnings in the
// presence of templates. Bug 17041.
// { dg-do compile }
// { dg-options "-Wparentheses" }
template<int> struct A
{
int i;
A() { if ((i = 0)) ; }
};
A<0> a;