https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59937
Javier V. Gómez <jota.uve at hotmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jota.uve at hotmail dot com
--- Comment #2 from Javier V. Gómez <jota.uve at hotmail dot com> ---
I found another case that worked in G++ 4.8.3 but fails in 4.9:
---------
main.cpp:
---------
int main ()
{
constexpr int n = 2;
A<n> a;
B b;
b.foo();
}
---------
a.hpp:
---------
template <size_t n> class A
{
static constexpr size_t getN() {return n;}
};
---------
b.hpp:
---------
class B
{
void foo ()
{
//has access to a A<n> object
constexpr int n = a.getN();
A<n> a2;
}
};
Compiler output:
B.hpp: error: the value of ‘n’ is not usable in a constant expression
A<n> a2;
^
B.hpp: note: ‘ndims’ used in its own initializer
constexpr int n = a.getN();
^
