Re: Compile time float binary representation

[Andrei Alexandrescu]

Jeremie Pelletier wrote:

Is there a way to convert a float (or double/real) to an integral number 
without changing its binary representation at compile time?

I need to extract the sign, exponent and mantissa yet I cant use bit shifting.
"Error: 'R' is not of integral type, it is a real" is the error I get.

The usual *cast(uint*)&value wont work either at compile time.

Any suggestions?

I got this to work, would it be applicable to your need?

void main(string[] args)
{
    union A
    {
        double x;
        int y;
    }
    enum A a = A(0.3);
    writeln(a.x);
    writeln(a.y);
}


Andrei