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re PR c++/38597 ([c++0x] ICE when auto return type function given as argument to function template)

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PR c++/38597
        * name-lookup.c (arg_assoc_type): Handle DECLTYPE_TYPE.

From-SVN: r142868
This commit is contained in:
Jason Merrill 2008-12-21 16:01:48 -05:00 committed by Jason Merrill
parent aad9c4f437
commit 3feb128fad
5 changed files with 26 additions and 4 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
2008-12-21 Jason Merrill <jason@redhat.com>
PR c++/38597
* name-lookup.c (arg_assoc_type): Handle DECLTYPE_TYPE.
2008-12-20 Jakub Jelinek <jakub@redhat.com>
Manuel López-Ibáñez <manu@gcc.gnu.org>

8
gcc/cp/mangle.c
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@ -2348,12 +2348,12 @@ write_expression (tree expr)
case CAST_EXPR:
write_type (TREE_TYPE (expr));
/* There is no way to mangle a zero-operand cast like
"T()". */
if (!TREE_OPERAND (expr, 0))
/* "T()" is mangled as "T(void)". */
write_char ('v');
sorry ("zero-operand casts cannot be mangled due to a defect "
"in the C++ ABI");
else if (list_length (TREE_OPERAND (expr, 0)) > 1)
/* FIXME the above hack for T() needs to be replaced with
something more general. */
sorry ("mangling function-style cast with more than one argument");
else
write_expression (TREE_VALUE (TREE_OPERAND (expr, 0)));

1
gcc/cp/name-lookup.c
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@ -4701,6 +4701,7 @@ arg_assoc_type (struct arg_lookup *k, tree type)
case VECTOR_TYPE:
case BOOLEAN_TYPE:
case FIXED_POINT_TYPE:
case DECLTYPE_TYPE:
return false;
case RECORD_TYPE:
if (TYPE_PTRMEMFUNC_P (type))

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2008-12-21 Jason Merrill <jason@redhat.com>
PR c++/38597
* g++.dg/cpp0x/auto13.C: New test.
2008-12-20 Jakub Jelinek <jakub@redhat.com>
Manuel López-Ibáñez <manu@gcc.gnu.org>

11
gcc/testsuite/g++.dg/cpp0x/auto13.C Normal file
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@ -0,0 +1,11 @@
// PR c++/38597
// { dg-options "-std=c++0x" }
template<class T, class U>
auto f(T,U) -> decltype(T() + U())
{ return T() + U(); }
template<class T> void g(T){}
int main() { g(f); } // { dg-error "no matching function" }