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++.
