re PR c++/49482 ([C++0x] unused parameter warning on lambda in function template)

PR c++/49482
	* semantics.c (maybe_add_lambda_conv_op): Call mark_exp_read for
	static fn parameters.

From-SVN: r175273
This commit is contained in:
Jason Merrill 2011-06-21 16:07:45 -04:00 committed by Jason Merrill
parent ccaff498ac
commit 358bb337a5
4 changed files with 23 additions and 1 deletions

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@ -1,5 +1,9 @@
2011-06-21 Jason Merrill <jason@redhat.com>
PR c++/49482
* semantics.c (maybe_add_lambda_conv_op): Call mark_exp_read for
static fn parameters.
* call.c (add_builtin_candidates): Use cv_unqualified rather than
TYPE_MAIN_VARIANT.
* pt.c (tsubst_arg_types): Likewise.

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@ -8780,7 +8780,10 @@ maybe_add_lambda_conv_op (tree type)
argvec = make_tree_vector ();
VEC_quick_push (tree, argvec, arg);
for (arg = DECL_ARGUMENTS (statfn); arg; arg = DECL_CHAIN (arg))
VEC_safe_push (tree, gc, argvec, arg);
{
mark_exp_read (arg);
VEC_safe_push (tree, gc, argvec, arg);
}
call = build_call_a (callop, VEC_length (tree, argvec),
VEC_address (tree, argvec));
CALL_FROM_THUNK_P (call) = 1;

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@ -1,5 +1,8 @@
2011-06-21 Jason Merrill <jason@redhat.com>
PR c++/49482
* g++.dg/cpp0x/lambda/lambda-warn3.C: New.
PR c++/49418
* g++.dg/template/param3.C: New.

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@ -0,0 +1,12 @@
// PR c++/49482
// { dg-options "-std=c++0x -Wunused-but-set-parameter" }
template<class T>
void f() {
[]( bool b ){ return b; };
}
int main()
{
f<int>();
}