Fix PR c++/42260 and ensure PR c++/45383 is fixed

gcc/cp/
	c++/42260
	* call.c (add_builtin_candidate): At this point the resulting type
	of an indirection operator should be complete.

gcc/testsuite/
	c++/42260
	c++/45383
	* g++.dg/conversion/cast2.C: New test.
	* g++.dg/conversion/cond4/C: Likewise. Ensures we don't regress on
	PR c++/45383

From-SVN: r167250

gcc/cp/ChangeLog

 2010-11-29  Dodji Seketeli  <dodji@redhat.com>
 
+	PR c++/42260
+	* call.c (add_builtin_candidate): At this point the resulting type
+    	of an indirection operator should be complete.
+
+2010-11-29  Dodji Seketeli  <dodji@redhat.com>
+
 	PR c++/45383
 	Reverted patch for PR c++/42260
 	* cp-tree.h (lookup_conversions): Reverted "Add new bool parameter to

gcc/cp/call.c

@@ -2022,6 +2022,7 @@ add_builtin_candidate (struct z_candidate **candidates, enum tree_code code,
 
     case INDIRECT_REF:
       if (TREE_CODE (type1) == POINTER_TYPE
+	  && is_complete (TREE_TYPE (type1))
 	  && (TYPE_PTROB_P (type1)
 	      || TREE_CODE (TREE_TYPE (type1)) == FUNCTION_TYPE))
 	break;

gcc/testsuite/ChangeLog

 2010-11-29  Dodji Seketeli  <dodji@redhat.com>
 
+	PR c++/42260
+	* g++.dg/conversion/cast2.C: New test.
+	* g++.dg/conversion/cond4/C: Likewise. This ensures we don't regress on
+	PR c++/45383
+
+2010-11-29  Dodji Seketeli  <dodji@redhat.com>
+
 	PR c++/45383
 	Reverted patch for PR c++/42260
 	* conversion/cast2.C: Reverted new test.

gcc/testsuite/g++.dg/conversion/cast2.C

+// Origin: PR c++/42260
+// { dg-do compile }
+
+struct A
+{
+      template<typename T> operator T*();
+};
+
+int i = *A();// { dg-error "no match" }

gcc/testsuite/g++.dg/conversion/cond4.C

+// Origin: PR c++/45383
+// { dg-do run }
+
+struct null {
+    null() {}
+    template<class T>
+    operator T*() const {
+    return 0;
+    }
+
+    template<class C, class T>
+    operator T C::*() const {
+    return 0;
+    }
+private:
+    null(const null&);
+    null& operator=(const null&);
+    void operator&() const;
+};
+
+static struct null null;
+
+int
+main()
+{
+    int* ptr = null;
+    if (ptr == null)
+        return 0;
+    if (ptr != null)
+        return 1;
+}