re PR c++/21210 (Trouble with __complex__ types default construction)

	PR c++/21210
	* typeck2.c (build_functional_cast): Use cp_convert to construct
	non-aggregate initializers instead of the user-level build_c_cast.

	* g++.dg/init/complex1.C: New test case.

From-SVN: r114573

gcc/cp/ChangeLog

+2006-06-12  Roger Sayle  <roger@eyesopen.com>
+
+	PR c++/21210
+	* typeck2.c (build_functional_cast): Use cp_convert to construct
+	non-aggregate initializers instead of the user-level build_c_cast.
+
 2006-06-07  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
 
 	PR c++/27601

gcc/cp/typeck2.c

@@ -1299,12 +1299,11 @@ build_functional_cast (tree exp, tree parms)
 
   if (! IS_AGGR_TYPE (type))
     {
-      /* This must build a C cast.  */
       if (parms == NULL_TREE)
-	parms = integer_zero_node;
-      else
-	parms = build_x_compound_expr_from_list (parms, "functional cast");
+	return cp_convert (type, integer_zero_node);
 
+      /* This must build a C cast.  */
+      parms = build_x_compound_expr_from_list (parms, "functional cast");
       return build_c_cast (type, parms);
     }
 

gcc/testsuite/ChangeLog

+2006-06-12  Roger Sayle  <roger@eyesopen.com>
+
+	PR c++/21210
+	* g++.dg/init/complex1.C: New test case.
+
 2006-06-11  Eric Christopher  <echristo@apple.com>
 
 	PR middle-end/27948

gcc/testsuite/g++.dg/init/complex1.C

+/* PR c++/21210 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+typedef float __complex__ fcomplex;
+fcomplex cplx = fcomplex();
+