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authorNathan Sidwell <nathan@codesourcery.com>2003-03-24 19:47:17 +0000
committerNathan Sidwell <nathan@gcc.gnu.org>2003-03-24 19:47:17 +0000
commit1c82cc908167526cae555db74532db40f889fe1d (patch)
treeabfff919753525ab8774866744a608e236770f6d
parenta5fcc8951b1107c6fd32b670e0e9919e53349bcf (diff)
downloadgcc-1c82cc908167526cae555db74532db40f889fe1d.tar.gz
PR c++/9898, PR c++/383, DR 322
cp: PR c++/9898, PR c++/383, DR 322 * pt.c (maybe_adjust_types_for_deduction) [DEDUCE_CONV]: Look through reference types on both PARM and ARG. testsuite: PR c++/9898, c++/383 * g++.dg/template/conv6.C: New test. From-SVN: r64815
-rw-r--r--gcc/cp/ChangeLog6
-rw-r--r--gcc/cp/pt.c6
-rw-r--r--gcc/testsuite/ChangeLog3
-rw-r--r--gcc/testsuite/g++.dg/template/conv6.C24
4 files changed, 39 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 8cc29882ab9..b2d4f795a78 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,4 +1,10 @@
2003-03-24 Nathan Sidwell <nathan@codesourcery.com>
+
+ PR c++/9898, PR c++/383, DR 322
+ * pt.c (maybe_adjust_types_for_deduction) [DEDUCE_CONV]: Look
+ through reference types on both PARM and ARG.
+
+2003-03-24 Nathan Sidwell <nathan@codesourcery.com>
PR c++/10119
* error.c (dump_expr) [BASELINK]: Use dump_expr.
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index aa9a2c72802..3557f9fec71 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -8753,6 +8753,12 @@ maybe_adjust_types_for_deduction (strict, parm, arg)
*parm = TREE_TYPE (*parm);
result |= UNIFY_ALLOW_OUTER_MORE_CV_QUAL;
}
+
+ /* DR 322. For conversion deduction, remove a reference type on parm
+ too (which has been swapped into ARG). */
+ if (strict == DEDUCE_CONV && TREE_CODE (*arg) == REFERENCE_TYPE)
+ *arg = TREE_TYPE (*arg);
+
return result;
}
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a5f853a4e28..cb6e0971f26 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
2003-03-24 Nathan Sidwell <nathan@codesourcery.com>
+ PR c++/9898, c++/383
+ * g++.dg/template/conv6.C: New test.
+
PR c++/10119
* g++.dg/template/ptrmem5.C: New test.
diff --git a/gcc/testsuite/g++.dg/template/conv6.C b/gcc/testsuite/g++.dg/template/conv6.C
new file mode 100644
index 00000000000..2a4a29952d5
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/conv6.C
@@ -0,0 +1,24 @@
+// { dg-do compile }
+
+// Copyright (C) 2003 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 21 Mar 2003 <nathan@codesourcery.com>
+
+// PR 9898, DR 322. Conversion to reference type.
+
+template <typename> struct Ref {};
+template <typename> struct Val {};
+
+struct Wrapper
+{
+ template <typename U> operator Ref<U> & ();
+ template <typename U> operator Val<U> ();
+};
+
+void Foo (Wrapper l)
+{
+ static_cast <Ref<int> &> (l);
+ static_cast <Ref<int> const &> (l);
+ static_cast <Ref<int> > (l);
+ static_cast <Val<int> const &> (l);
+ static_cast <Val<int> > (l);
+}