re PR c++/23841 (Floating-point literals cast to integral types should be…

re PR c++/23841 (Floating-point literals cast to integral types should be accepted in integer constant expressions)

	PR c++/23841
	* parser.c (cp_parser_primary_expression): Recognize the closing
	">" of a template-argument-list after a floating-point literal as
	the end of a cast expression.

	PR c++/23841
	* g++.dg/parse/template17.C: New test.

From-SVN: r104208

gcc/cp/ChangeLog

 2005-09-12  Mark Mitchell  <mark@codesourcery.com>
 
+	PR c++/23841
+	* parser.c (cp_parser_primary_expression): Recognize the closing
+	">" of a template-argument-list after a floating-point literal as
+	the end of a cast expression.
+
+2005-09-12  Mark Mitchell  <mark@codesourcery.com>
+
 	PR c++/23789
 	* cvt.c (perform_qualification_conversions): Don't create
 	unnecessary NOP_EXPRs.

gcc/cp/parser.c

@@ -2779,7 +2779,10 @@ cp_parser_primary_expression (cp_parser *parser,
 		  /* The end of the cast-expression.  */
 		  && next_token->type != CPP_CLOSE_PAREN
 		  /* The end of an array bound.  */
-		  && next_token->type != CPP_CLOSE_SQUARE)
+		  && next_token->type != CPP_CLOSE_SQUARE
+		  /* The closing ">" in a template-argument-list.  */
+		  && (next_token->type != CPP_GREATER
+		      || parser->greater_than_is_operator_p))
 		cast_p = false;
 	    }
 

gcc/testsuite/ChangeLog

 2005-09-12  Mark Mitchell  <mark@codesourcery.com>
 
+	PR c++/23841
+	* g++.dg/parse/template17.C: New test.
+
+2005-09-12  Mark Mitchell  <mark@codesourcery.com>
+
 	PR c++/23789
 	* g++.dg/template/nontype14.C: New test.
 

gcc/testsuite/g++.dg/parse/template17.C

+// PR c++/23841
+
+template <int I>
+struct S
+{
+  int f(int i = I) { return i; }
+};
+
+void
+g ()
+{
+  S<(int)0.> a2;
+}