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* [Bug c++/59435] New: sizeof...(T) as default value for an argument does not work @ 2013-12-09 16:33 thomas.sanchz at gmail dot com 2013-12-09 19:21 ` [Bug c++/59435] sizeof...(T) as default value for an argument in the constructor " paolo.carlini at oracle dot com ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: thomas.sanchz at gmail dot com @ 2013-12-09 16:33 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59435 Bug ID: 59435 Summary: sizeof...(T) as default value for an argument does not work Product: gcc Version: 4.8.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: thomas.sanchz at gmail dot com Hi everybody, I encountered something not supported in gcc from 4.7 to 4.9, but working in clang from 3.2 (tested on gcc goldbot). Here is the code: template <typename... E> struct T { T(unsigned int i = sizeof...(E)){} // does not compile static constexpr unsigned int U = sizeof...(E); T(unsigned int j, unsigned int i = U){} // compile }; template <typename... T> void test(int i = sizeof...(T)) // compile {} Invocation with "g++ -std=c++11 test.cpp" is enough to reproduce the bug. Please let me know if you need more information. Cheers, ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/59435] sizeof...(T) as default value for an argument in the constructor does not work 2013-12-09 16:33 [Bug c++/59435] New: sizeof...(T) as default value for an argument does not work thomas.sanchz at gmail dot com @ 2013-12-09 19:21 ` paolo.carlini at oracle dot com 2013-12-09 22:59 ` paolo at gcc dot gnu.org 2013-12-09 23:00 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2013-12-09 19:21 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59435 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2013-12-09 Assignee|unassigned at gcc dot gnu.org |paolo.carlini at oracle dot com Target Milestone|--- |4.9.0 Ever confirmed|0 |1 --- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> --- The problem is in cp_parser_cache_defarg as called by cp_parser_parameter_declaration ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/59435] sizeof...(T) as default value for an argument in the constructor does not work 2013-12-09 16:33 [Bug c++/59435] New: sizeof...(T) as default value for an argument does not work thomas.sanchz at gmail dot com 2013-12-09 19:21 ` [Bug c++/59435] sizeof...(T) as default value for an argument in the constructor " paolo.carlini at oracle dot com @ 2013-12-09 22:59 ` paolo at gcc dot gnu.org 2013-12-09 23:00 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo at gcc dot gnu.org @ 2013-12-09 22:59 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59435 --- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> --- Author: paolo Date: Mon Dec 9 22:59:33 2013 New Revision: 205836 URL: http://gcc.gnu.org/viewcvs?rev=205836&root=gcc&view=rev Log: /cp 2013-12-09 Paolo Carlini <paolo.carlini@oracle.com> PR c++/59435 * parser.c (cp_parser_cache_defarg): sizeof ... ( p ) can occur in a default argument too. /testsuite 2013-12-09 Paolo Carlini <paolo.carlini@oracle.com> PR c++/59435 * g++.dg/cpp0x/variadic-sizeof3.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp0x/variadic-sizeof3.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/parser.c trunk/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/59435] sizeof...(T) as default value for an argument in the constructor does not work 2013-12-09 16:33 [Bug c++/59435] New: sizeof...(T) as default value for an argument does not work thomas.sanchz at gmail dot com 2013-12-09 19:21 ` [Bug c++/59435] sizeof...(T) as default value for an argument in the constructor " paolo.carlini at oracle dot com 2013-12-09 22:59 ` paolo at gcc dot gnu.org @ 2013-12-09 23:00 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2013-12-09 23:00 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59435 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED Assignee|paolo.carlini at oracle dot com |unassigned at gcc dot gnu.org --- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> --- Fixed for 4.9.0. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-12-09 23:00 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-12-09 16:33 [Bug c++/59435] New: sizeof...(T) as default value for an argument does not work thomas.sanchz at gmail dot com 2013-12-09 19:21 ` [Bug c++/59435] sizeof...(T) as default value for an argument in the constructor " paolo.carlini at oracle dot com 2013-12-09 22:59 ` paolo at gcc dot gnu.org 2013-12-09 23:00 ` paolo.carlini at oracle dot com
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