Re: [boost] [mpl] strange vector_c and integral_c construction

Subject: Re: [boost] [mpl] strange vector_c and integral_c construction
From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2009-08-12 14:30:39

Maxim Yanchenko wrote:

> template<
>       typename T, long C0 = LONG_MAX, long C1 = LONG_MAX, long C2 = LONG_MAX
>     , long C3 = LONG_MAX, long C4 = LONG_MAX, long C5 = LONG_MAX
>     , long C6 = LONG_MAX, long C7 = LONG_MAX, long C8 = LONG_MAX
>     , long C9 = LONG_MAX, long C10 = LONG_MAX, long C11 = LONG_MAX
>     , long C12 = LONG_MAX, long C13 = LONG_MAX, long C14 = LONG_MAX
>     , long C15 = LONG_MAX, long C16 = LONG_MAX, long C17 = LONG_MAX
>     , long C18 = LONG_MAX, long C19 = LONG_MAX
>     >
> struct vector_c;
> 
> I'm using GCC 3.4.6, on Linux-64, compiling 32-bit binary (so int and long are
> of same size, and boost::int64_t is bigger than long).

long is the biggest integral type as far as standard C++ is concerned.
The issue comes from the fact the "long long" extension is not supported 
by Boost.MPL.
So, strictly speaking, it's more of a lacking feature than a bug.