From b4147d19f10de742a8b091a420b2c437ac9ffd5d Mon Sep 17 00:00:00 2001 From: Andrew Sutton Date: Mon, 2 Dec 2019 09:26:40 -0500 Subject: [PATCH 1/1] Fix PR c++/92739. gcc/cp/ * parser.c (cp_parser_constraint_requires_parens): Exclude attributes as postfix expressions. gcc/testsuite/ * g++.dg/concepts-pr92739.C: New test. --- gcc/cp/ChangeLog | 6 ++++++ gcc/cp/parser.c | 8 ++++++++ gcc/testsuite/ChangeLog | 5 +++++ 3 files changed, 19 insertions(+) diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 3a6bf059a2d..e806dbef262 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2019-12-02 Andrew Sutton + + PR c++/92739 + * parser.c (cp_parser_constraint_requires_parens): Exclude attributes + as postfix expressions. + 2019-11-29 Jakub Jelinek PR c++/60228 diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c index fb030022627..0e3178f0c71 100644 --- a/gcc/cp/parser.c +++ b/gcc/cp/parser.c @@ -27218,6 +27218,14 @@ cp_parser_constraint_requires_parens (cp_parser *parser, bool lambda_p) gcc_fallthrough (); } case CPP_OPEN_SQUARE: + { + /* A primary-constraint-expression followed by a '[[' is not a + postfix expression. */ + if (cp_lexer_nth_token_is (parser->lexer, 2, CPP_OPEN_SQUARE)) + return pce_ok; + + gcc_fallthrough (); + } case CPP_PLUS_PLUS: case CPP_MINUS_MINUS: case CPP_DOT: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index bc991e229e9..82e7f4d6884 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2019-12-02 Andrew Sutton + + PR c++/92739 + * g++.dg/concepts-pr92739.C: New test. + 2019-12-02 Martin Liska * g++.dg/lto/odr-7_0.C: New test. -- 2.18.0