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re PR c++/49458 ([C++0x][DR 1328] Obvious candidate for conversion to function lvalue rejected)

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PR c++/49458
	* call.c (convert_class_to_reference_1): Allow binding function
	lvalue to rvalue reference.

From-SVN: r175164
This commit is contained in:
Jason Merrill 2011-06-18 01:58:38 -04:00 • committed by Jason Merrill
parent 65e5579c29
commit dfe8601ce7
4 changed files with 18 additions and 0 deletions
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4
gcc/cp/ChangeLog
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@ -1,5 +1,9 @@
2011-06-17 Jason Merrill <jason@redhat.com>
PR c++/49458
* call.c (convert_class_to_reference_1): Allow binding function
lvalue to rvalue reference.
PR c++/43912
Generate proxy VAR_DECLs for better lambda debug info.
* cp-tree.h (FUNCTION_NEEDS_BODY_BLOCK): Add lambda operator().

2
gcc/cp/call.c
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@ -1362,6 +1362,8 @@ convert_class_to_reference_1 (tree reference_type, tree s, tree expr, int flags)
/* Don't allow binding of lvalues to rvalue references. */
if (TYPE_REF_IS_RVALUE (reference_type)
/* Function lvalues are OK, though. */
&& TREE_CODE (TREE_TYPE (reference_type)) != FUNCTION_TYPE
&& !TYPE_REF_IS_RVALUE (TREE_TYPE (TREE_TYPE (cand->fn))))
cand->second_conv->bad_p = true;
}

2
gcc/testsuite/ChangeLog
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@ -1,5 +1,7 @@
2011-06-17 Jason Merrill <jason@redhat.com>
* g++.dg/cpp0x/rv-func2.C: New.
* g++.dg/debug/dwarf2/lambda1.C: New.
* g++.dg/warn/Wshadow-6.C: Adjust.

10
gcc/testsuite/g++.dg/cpp0x/rv-func2.C Normal file
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@ -0,0 +1,10 @@
// PR c++/49458
// { dg-options -std=c++0x }
typedef void ftype();
struct A {
operator ftype&(void);
};
ftype &&frvref = A();