diff options
Diffstat (limited to 'gcc/cp/parser.c')
| -rw-r--r-- | gcc/cp/parser.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c index 2e8e34eaf5e..ab6d7f1f2ba 100644 --- a/gcc/cp/parser.c +++ b/gcc/cp/parser.c @@ -7591,8 +7591,9 @@ cp_parser_new_expression (cp_parser* parser) type = cp_parser_new_type_id (parser, &nelts); /* If the next token is a `(' or '{', then we have a new-initializer. */ - if (cp_lexer_next_token_is (parser->lexer, CPP_OPEN_PAREN) - || cp_lexer_next_token_is (parser->lexer, CPP_OPEN_BRACE)) + cp_token *token = cp_lexer_peek_token (parser->lexer); + if (token->type == CPP_OPEN_PAREN + || token->type == CPP_OPEN_BRACE) initializer = cp_parser_new_initializer (parser); else initializer = NULL; @@ -7601,6 +7602,21 @@ cp_parser_new_expression (cp_parser* parser) expression. */ if (cp_parser_non_integral_constant_expression (parser, NIC_NEW)) ret = error_mark_node; + /* 5.3.4/2: "If the auto type-specifier appears in the type-specifier-seq + of a new-type-id or type-id of a new-expression, the new-expression shall + contain a new-initializer of the form ( assignment-expression )". + Additionally, consistently with the spirit of DR 1467, we want to accept + 'new auto { 2 }' too. */ + else if (type_uses_auto (type) + && (vec_safe_length (initializer) != 1 + || (BRACE_ENCLOSED_INITIALIZER_P ((*initializer)[0]) + && CONSTRUCTOR_NELTS ((*initializer)[0]) != 1))) + { + error_at (token->location, + "initialization of new-expression for type %<auto%> " + "requires exactly one element"); + ret = error_mark_node; + } else { /* Create a representation of the new-expression. */ |