re PR c++/30895 (ICE with complex values in template parameter)

2007-03-04  Simon Martin  <simartin@users.sourceforge.net>

	PR c++/30895
	* tree.c (cp_tree_equal): Properly handle COMPLEX_CST trees.

From-SVN: r122532

gcc/cp/ChangeLog

+2007-03-04  Simon Martin  <simartin@users.sourceforge.net>
+
+	PR c++/30895
+	* tree.c (cp_tree_equal): Properly handle COMPLEX_CST trees.
+
 2007-03-03  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 
 	PR c++/15787

gcc/cp/tree.c

@@ -1670,6 +1670,10 @@ cp_tree_equal (tree t1, tree t2)
 	&& !memcmp (TREE_STRING_POINTER (t1), TREE_STRING_POINTER (t2),
 		    TREE_STRING_LENGTH (t1));
 
+    case COMPLEX_CST:
+      return cp_tree_equal (TREE_REALPART (t1), TREE_REALPART (t2))
+	&& cp_tree_equal (TREE_IMAGPART (t1), TREE_IMAGPART (t2));
+
     case CONSTRUCTOR:
       /* We need to do this when determining whether or not two
 	 non-type pointer to member function template arguments

gcc/testsuite/ChangeLog

+2007-03-04  Simon Martin  <simartin@users.sourceforge.net>
+
+	PR c++/30895
+	* g++.dg/parse/template23.C: New test.
+
 2007-03-04  Roger Sayle  <roger@eyesopen.com>
 
 	PR middle-end/30744

gcc/testsuite/g++.dg/parse/template23.C

+/* PR c++/30895 This used to ICE.  */
+/* { dg-do "compile" } */
+
+template<int> struct A {};
+
+template<typename T> struct B
+{
+  A<T(0i)> a1; /* { dg-error "imaginary constants are a GCC extension" } */
+  A<T(0i)> a2; /* { dg-error "imaginary constants are a GCC extension" } */
+};