Re: [boost] [Boost.FixedPoint] Choose notation

On 4/29/2013 3:03 AM, John Maddock wrote:

...

If you absolutely needed an 8.4 type then you need fixed-width integer support beyond that provided by <cstdint>. You could provide an implementation of integer<12> that is a 12 bit integer and then make fixed,4>. In my opinion this is another library outside the scope of a fixed-point library.

Can I just point out that the multiprecision lib will do a 12-bit int type if that's what you want:

typedef number > my_int12_t;

Nice.

Of course the signed version is signed-magnitude not 2's complement....

Shame, interop with libraries like OpenGL ES would require 2s complement (signed 16.16).