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* [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type
@ 2012-02-22 18:49 trashyankes at wp dot pl
2012-02-22 23:24 ` [Bug c++/52343] " daniel.kruegler at googlemail dot com
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: trashyankes at wp dot pl @ 2012-02-22 18:49 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
Bug #: 52343
Summary: [C++11] alias-definition dont work in
`template<class>` params type
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: trashyankes@wp.pl
gcc version 4.7.0 20120203 (experimental) (niXman build)
code:
---------------------------
---------------------------
class bb {};
template<typename A>
using a1 = int; //same with char, bool and long
template<typename C>
using a2 = bb;
template<typename D>
using a3 = double;
template<template<class> class T>
struct aa
{
};
aa<a1> zz1; //error: integral expression 'a1' is not constant WTF??
aa<a2> zz2;
aa<a3> zz3;
---------------------------
---------------------------
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/52343] [C++11] alias-definition dont work in `template<class>` params type
2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
@ 2012-02-22 23:24 ` daniel.kruegler at googlemail dot com
2012-02-23 9:54 ` redi at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: daniel.kruegler at googlemail dot com @ 2012-02-22 23:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
Daniel Krügler <daniel.kruegler at googlemail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |daniel.kruegler at
| |googlemail dot com
--- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-02-22 22:31:40 UTC ---
Confirmed for 4.7.0 20120218 (experimental).
Reduced example:
//---
template<typename>
using A = int;
template<template<class> class>
struct B {};
B<A> b;
//---
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/52343] [C++11] alias-definition dont work in `template<class>` params type
2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
2012-02-22 23:24 ` [Bug c++/52343] " daniel.kruegler at googlemail dot com
@ 2012-02-23 9:54 ` redi at gcc dot gnu.org
2012-11-06 20:54 ` cppljevans at suddenlink dot net
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: redi at gcc dot gnu.org @ 2012-02-23 9:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-02-23
Ever Confirmed|0 |1
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/52343] [C++11] alias-definition dont work in `template<class>` params type
2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
2012-02-22 23:24 ` [Bug c++/52343] " daniel.kruegler at googlemail dot com
2012-02-23 9:54 ` redi at gcc dot gnu.org
@ 2012-11-06 20:54 ` cppljevans at suddenlink dot net
2012-11-06 20:55 ` cppljevans at suddenlink dot net
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: cppljevans at suddenlink dot net @ 2012-11-06 20:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
--- Comment #2 from Larry Evans <cppljevans at suddenlink dot net> 2012-11-06 20:53:02 UTC ---
Created attachment 28625
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28625
test file
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/52343] [C++11] alias-definition dont work in `template<class>` params type
2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
` (2 preceding siblings ...)
2012-11-06 20:54 ` cppljevans at suddenlink dot net
@ 2012-11-06 20:55 ` cppljevans at suddenlink dot net
2012-12-20 15:25 ` dodji at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: cppljevans at suddenlink dot net @ 2012-11-06 20:55 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
--- Comment #3 from Larry Evans <cppljevans at suddenlink dot net> 2012-11-06 20:55:19 UTC ---
Created attachment 28626
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28626
compilation of test file with 2 compilers and 2 values of macro.
The error is shown when -DUSE_ALIAS and with the later compiler, which
was created with release configuration. The earlier compiler,
with debug configuration, doesn't show error.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/52343] [C++11] alias-definition dont work in `template<class>` params type
2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
` (3 preceding siblings ...)
2012-11-06 20:55 ` cppljevans at suddenlink dot net
@ 2012-12-20 15:25 ` dodji at gcc dot gnu.org
2012-12-22 16:08 ` dodji at seketeli dot org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: dodji at gcc dot gnu.org @ 2012-12-20 15:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
Dodji Seketeli <dodji at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |dodji at gcc dot gnu.org
|gnu.org |
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/52343] [C++11] alias-definition dont work in `template<class>` params type
2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
` (4 preceding siblings ...)
2012-12-20 15:25 ` dodji at gcc dot gnu.org
@ 2012-12-22 16:08 ` dodji at seketeli dot org
2013-01-07 8:04 ` dodji at gcc dot gnu.org
2013-01-07 10:44 ` dodji at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: dodji at seketeli dot org @ 2012-12-22 16:08 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
--- Comment #4 from dodji at seketeli dot org <dodji at seketeli dot org> 2012-12-22 16:08:25 UTC ---
A candidate patch for this was proposed at
http://gcc.gnu.org/ml/gcc-patches/2012-12/msg01312.html.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/52343] [C++11] alias-definition dont work in `template<class>` params type
2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
` (5 preceding siblings ...)
2012-12-22 16:08 ` dodji at seketeli dot org
@ 2013-01-07 8:04 ` dodji at gcc dot gnu.org
2013-01-07 10:44 ` dodji at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: dodji at gcc dot gnu.org @ 2013-01-07 8:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
--- Comment #5 from Dodji Seketeli <dodji at gcc dot gnu.org> 2013-01-07 08:03:39 UTC ---
Author: dodji
Date: Mon Jan 7 08:03:33 2013
New Revision: 194960
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194960
Log:
PR c++/52343 - error with alias template as template template argument
In the example accompanying this patch, check_instantiated_arg tries
to ensure that a non-type template argument should be a constant if it
has integral or enumeration type.
The problem is that an alias template which type-id is, e.g, an
integer, looks like an argument that has integral/enumeration type:
its TREE_TYPE is an integer type. So check_instantiated_arg
mistenkaly barks that this integral non-type argument is not a
constant.
Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk.
gcc/cp/
PR c++/52343
* pt.c (check_instantiated_arg): Allow type template arguments.
gcc/testsuite/
PR c++/52343
* g++.dg/cpp0x/alias-decl-29.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/alias-decl-29.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/pt.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/52343] [C++11] alias-definition dont work in `template<class>` params type
2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
` (6 preceding siblings ...)
2013-01-07 8:04 ` dodji at gcc dot gnu.org
@ 2013-01-07 10:44 ` dodji at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: dodji at gcc dot gnu.org @ 2013-01-07 10:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52343
Dodji Seketeli <dodji at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #6 from Dodji Seketeli <dodji at gcc dot gnu.org> 2013-01-07 10:44:14 UTC ---
This should be fixed in trunk (4.8)
^ permalink raw reply [flat|nested] 9+ messages in thread
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2012-02-22 18:49 [Bug c++/52343] New: [C++11] alias-definition dont work in `template<class>` params type trashyankes at wp dot pl
2012-02-22 23:24 ` [Bug c++/52343] " daniel.kruegler at googlemail dot com
2012-02-23 9:54 ` redi at gcc dot gnu.org
2012-11-06 20:54 ` cppljevans at suddenlink dot net
2012-11-06 20:55 ` cppljevans at suddenlink dot net
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2012-12-22 16:08 ` dodji at seketeli dot org
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