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* [Bug c++/65790] New: compilation error std::index_sequnece
@ 2015-04-17 5:58 faithandbrave at gmail dot com
2015-04-17 8:09 ` [Bug c++/65790] compilation error : receive std::index_sequnece redi at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: faithandbrave at gmail dot com @ 2015-04-17 5:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65790
Bug ID: 65790
Summary: compilation error std::index_sequnece
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: faithandbrave at gmail dot com
Compilation error follow code:
#include <iostream>
#include <utility>
void g(std::size_t a, std::size_t b, std::size_t c)
{
std::cout << a << ", " << b << ", " << c << std::endl;
}
//template <class T, T... Seq>
//void f(std::integer_sequence<T, Seq...>) // OK
template <std::size_t... Seq>
void f(std::index_sequence<Seq...>) // NG
{
g(Seq...);
}
int main()
{
f(std::index_sequence<0, 1, 2>());
}
error message:
prog.cc: In function 'void f(std::index_sequence<Seq ...>)':
prog.cc:14:11: error: too few arguments to function 'void g(std::size_t,
std::size_t, std::size_t)'
g(Seq...);
^
prog.cc:4:6: note: declared here
void g(std::size_t a, std::size_t b, std::size_t c)
^
I think this is compiler's issue, not libstdc++.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/65790] compilation error : receive std::index_sequnece
2015-04-17 5:58 [Bug c++/65790] New: compilation error std::index_sequnece faithandbrave at gmail dot com
@ 2015-04-17 8:09 ` redi at gcc dot gnu.org
2015-07-09 9:43 ` [Bug c++/65790] compilation error : receive std::index_sequence paolo.carlini at oracle dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: redi at gcc dot gnu.org @ 2015-04-17 8:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65790
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-04-17
Ever confirmed|0 |1
Known to fail| |4.8.3, 4.9.2, 5.0, 6.0
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Confirmed, Clang and EDG accept this:
extern "C" int printf(const char* ...);
namespace std
{
typedef decltype(sizeof(0)) size_t;
template<typename _Tp, _Tp... _Idx>
struct integer_sequence
{
typedef _Tp value_type;
static constexpr size_t size() { return sizeof...(_Idx); }
};
template<size_t... _Idx>
using index_sequence = integer_sequence<size_t, _Idx...>;
}
void g(std::size_t a, std::size_t b, std::size_t c)
{
printf("%zu, %zu, %zu\n", a, b, c);
}
template <std::size_t... Seq>
void f(std::index_sequence<Seq...>)
{
g(Seq...);
}
int main()
{
f(std::index_sequence<0, 1, 2>());
}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/65790] compilation error : receive std::index_sequence
2015-04-17 5:58 [Bug c++/65790] New: compilation error std::index_sequnece faithandbrave at gmail dot com
2015-04-17 8:09 ` [Bug c++/65790] compilation error : receive std::index_sequnece redi at gcc dot gnu.org
@ 2015-07-09 9:43 ` paolo.carlini at oracle dot com
2015-07-09 9:51 ` paolo at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: paolo.carlini at oracle dot com @ 2015-07-09 9:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65790
--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> ---
This is fixed for 5.2. Let's add the testcase and close the bug.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/65790] compilation error : receive std::index_sequence
2015-04-17 5:58 [Bug c++/65790] New: compilation error std::index_sequnece faithandbrave at gmail dot com
2015-04-17 8:09 ` [Bug c++/65790] compilation error : receive std::index_sequnece redi at gcc dot gnu.org
2015-07-09 9:43 ` [Bug c++/65790] compilation error : receive std::index_sequence paolo.carlini at oracle dot com
@ 2015-07-09 9:51 ` paolo at gcc dot gnu.org
2015-07-09 9:52 ` paolo.carlini at oracle dot com
2015-07-09 14:21 ` faithandbrave at gmail dot com
4 siblings, 0 replies; 6+ messages in thread
From: paolo at gcc dot gnu.org @ 2015-07-09 9:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65790
--- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Thu Jul 9 09:51:09 2015
New Revision: 225607
URL: https://gcc.gnu.org/viewcvs?rev=225607&root=gcc&view=rev
Log:
2015-07-09 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/65790
* g++.dg/cpp0x/vt-65790.C: New.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/vt-65790.C
Modified:
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/65790] compilation error : receive std::index_sequence
2015-04-17 5:58 [Bug c++/65790] New: compilation error std::index_sequnece faithandbrave at gmail dot com
` (2 preceding siblings ...)
2015-07-09 9:51 ` paolo at gcc dot gnu.org
@ 2015-07-09 9:52 ` paolo.carlini at oracle dot com
2015-07-09 14:21 ` faithandbrave at gmail dot com
4 siblings, 0 replies; 6+ messages in thread
From: paolo.carlini at oracle dot com @ 2015-07-09 9:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65790
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |5.2
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Done.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/65790] compilation error : receive std::index_sequence
2015-04-17 5:58 [Bug c++/65790] New: compilation error std::index_sequnece faithandbrave at gmail dot com
` (3 preceding siblings ...)
2015-07-09 9:52 ` paolo.carlini at oracle dot com
@ 2015-07-09 14:21 ` faithandbrave at gmail dot com
4 siblings, 0 replies; 6+ messages in thread
From: faithandbrave at gmail dot com @ 2015-07-09 14:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65790
--- Comment #5 from Akira Takahashi <faithandbrave at gmail dot com> ---
Thanks Paolo!!
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-07-09 14:21 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2015-04-17 5:58 [Bug c++/65790] New: compilation error std::index_sequnece faithandbrave at gmail dot com
2015-04-17 8:09 ` [Bug c++/65790] compilation error : receive std::index_sequnece redi at gcc dot gnu.org
2015-07-09 9:43 ` [Bug c++/65790] compilation error : receive std::index_sequence paolo.carlini at oracle dot com
2015-07-09 9:51 ` paolo at gcc dot gnu.org
2015-07-09 9:52 ` paolo.carlini at oracle dot com
2015-07-09 14:21 ` faithandbrave at gmail dot com
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