diff options
Diffstat (limited to 'gcc/cp/parser.c')
| -rw-r--r-- | gcc/cp/parser.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c index 55dd29f..178114d 100644 --- a/gcc/cp/parser.c +++ b/gcc/cp/parser.c @@ -7700,8 +7700,9 @@ cp_parser_delete_expression (cp_parser* parser) tf_warning_or_error); } -/* Returns 1 if TOKEN may start a cast-expression and, in C++11, - isn't '[', -1 if TOKEN is '[' in C++11, 0 otherwise. */ +/* Returns 1 if TOKEN may start a cast-expression and isn't '++', '--', + neither '[' in C++11; -1 if TOKEN is '++', '--', or '[' in C++11; + 0 otherwise. */ static int cp_parser_tokens_start_cast_expression (cp_parser *parser) @@ -7755,13 +7756,26 @@ cp_parser_tokens_start_cast_expression (cp_parser *parser) return cp_lexer_peek_nth_token (parser->lexer, 2)->type != CPP_CLOSE_PAREN; + case CPP_OPEN_SQUARE: /* '[' may start a primary-expression in obj-c++ and in C++11, as a lambda-expression, eg, '(void)[]{}'. */ - case CPP_OPEN_SQUARE: if (cxx_dialect >= cxx11) return -1; return c_dialect_objc (); + case CPP_PLUS_PLUS: + case CPP_MINUS_MINUS: + /* '++' and '--' may or may not start a cast-expression: + + struct T { void operator++(int); }; + void f() { (T())++; } + + vs + + int a; + (int)++a; */ + return -1; + default: return 1; } @@ -7874,8 +7888,8 @@ cp_parser_cast_expression (cp_parser *parser, bool address_p, bool cast_p, function returning T. */ if (!cp_parser_error_occurred (parser)) { - /* Only commit if the cast-expression doesn't start with '[' in - C++11, which may or may not start a lambda-expression. */ + /* Only commit if the cast-expression doesn't start with + '++', '--', or '[' in C++11. */ if (cast_expression > 0) cp_parser_commit_to_topmost_tentative_parse (parser); |