re PR c++/15064 (typeid of template parameter gives ICE)

	PR c++/15064
	* parser.c (cp_parser_postfix_expression): typeid operator cannot be
	used in integral constant expressions.

	PR c++/15064
	* g++.dg/template/crash18.C: New test.

From-SVN: r81088

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index f654b18..59402a0 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2004-04-23  Giovanni Bajo  <giovannibajo@gcc.gnu.org>
+
+       PR c++/15064
+       * parser.c (cp_parser_postfix_expression): typeid operator cannot be
+       used in integral constant expressions.
+
 2004-04-22  Mark Mitchell  <mark@codesourcery.com>
 
        * init.c (build_aggr_init): Fix accidental use of C99 construct in

diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c
index 0732a65..6fb8da5 100644 (file)
--- a/gcc/cp/parser.c
+++ b/gcc/cp/parser.c
@@ -3594,7 +3594,10 @@ cp_parser_postfix_expression (cp_parser *parser, bool address_p)
            /* Look for the `)' token.  */
            cp_parser_require (parser, CPP_CLOSE_PAREN, "`)'");
          }
-
+       /* `typeid' may not appear in an integral constant expression.  */
+       if (cp_parser_non_integral_constant_expression(parser, 
+                                                      "`typeid' operator"))
+         return error_mark_node;
        /* Restore the saved message.  */
        parser->type_definition_forbidden_message = saved_message;
       }

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index aa479b4..b57694e 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2004-04-23  Giovanni Bajo  <giovannibajo@gcc.gnu.org>
+
+       PR c++/15064
+       * g++.dg/template/crash18.C: New test.
+
 2004-04-22  Mark Mitchell  <mark@codesourcery.com>
 
        * g++.dg/ext/complit3.C: New test.

diff --git a/gcc/testsuite/g++.dg/template/crash18.C b/gcc/testsuite/g++.dg/template/crash18.C
new file mode 100644 (file)
index 0000000..5eb9292
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/crash18.C
@@ -0,0 +1,13 @@
+// { dg-do compile }
+// Contributed by: <leif dot lonnblad at thep dot lu dot se>
+// PR c++/15064: typeid does not form an integral constant expression
+
+#include <typeinfo>
+
+template <typename T>
+void dummy() {
+  const std::type_info& t = typeid(T);
+  const std::type_info& t2 = typeid(float);
+}
+
+template void dummy<int>(void);