re PR c++/15745 (exception specification incorrectly changes the type of the exception thrown)

        PR c++/15745
        * except.c (prepare_eh_type): Use type_decays_to.

From-SVN: r128174

gcc/cp/ChangeLog

 2007-09-05  Jason Merrill  <jason@redhat.com>
 
+	PR c++/15745
+	* except.c (prepare_eh_type): Use type_decays_to.
+
 	PR c++/15097
 	* init.c (build_delete): Use build_headof to get the address of the
 	complete object if we aren't using the deleting destructor.

gcc/cp/except.c

@@ -115,6 +115,9 @@ prepare_eh_type (tree type)
   /* Peel off cv qualifiers.  */
   type = TYPE_MAIN_VARIANT (type);
 
+  /* Functions and arrays decay to pointers.  */
+  type = type_decays_to (type);
+
   return type;
 }
 

gcc/testsuite/g++.dg/eh/spec9.C

+// PR c++/15745
+// { dg-do run }
+
+typedef int IntArray[10];
+IntArray i;
+
+void test_array() throw (IntArray)
+{
+  throw i;
+}
+
+int main ()
+{
+  try
+    {
+      test_array();
+    }
+  catch (IntArray) {}
+}

gcc/testsuite/g++.dg/ext/vla4.C

@@ -7,7 +7,7 @@ void f(int i) {
   try {
     int a[i];
     throw &a; // { dg-error "variable size" }
-  } catch (int (&)[i]) { // { dg-error "variable size" }
+  } catch (int (*)[i]) { // { dg-error "variable size" }
   }
 }