Upstream-Status: Backport
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

r200836 | jason | 2013-07-09 14:52:17 -0300 (Tue, 09 Jul 2013) | 3 lines

        PR c++/57532
        * parser.c (cp_parser_ref_qualifier_opt): Don't tentatively parse
        a ref-qualifier in C++98 mode.

Index: gcc/testsuite/g++.dg/parse/ref-qual2.C
===================================================================
--- a/gcc/testsuite/g++.dg/parse/ref-qual2.C	(revision 0)
+++ b/gcc/testsuite/g++.dg/parse/ref-qual2.C	(revision 200836)
@@ -0,0 +1,6 @@
+// PR c++/57532
+
+int main()
+{
+    return (int() & int());
+}
Index: gcc/cp/parser.c
===================================================================
--- a/gcc/cp/parser.c	(revision 200835)
+++ b/gcc/cp/parser.c	(revision 200836)
@@ -16986,6 +16986,11 @@
 {
   cp_ref_qualifier ref_qual = REF_QUAL_NONE;
   cp_token *token = cp_lexer_peek_token (parser->lexer);
+
+  /* Don't try to parse bitwise '&' as a ref-qualifier (c++/57532).  */
+  if (cxx_dialect < cxx11 && cp_parser_parsing_tentatively (parser))
+    return ref_qual;
+
   switch (token->type)
     {
     case CPP_AND: