Another take on decimal data types

[kdevel]

On Thursday, 11 January 2018 at 22:36:40 UTC, rumbu wrote:
> 1000
> 100
> 10
> 1
> 0.1
> 0.01
> 0.001
> 0.0001
> 1e-05
>
> Regarding printf, I cannot help, this is a C function, has 
> nothing to do with D formatting.

Sure. What about the failed comparison:

gt.d
```
import std.stdio;
import decimal;

void loopme(T) ()
{
    "---".writeln;
    T e = 10;
    while (e > 1e-6) {
       e /= 10;
       writeln (e, ' ', e > 1e-6);
    }
}

void main ()
{
    loopme!decimal32;
    loopme!decimal64;
    loopme!decimal128;
}
```

This gives here:

    ---
    1 true
    0.1 false
    ---
    1 true
    0.1 false
    ---
    1 true
    0.1 true
    0.0100000 true
    0.00100000 true
    0.000100000 true
    1.00000e-05 true
    1.00000e-06 true
    1.00000e-07 false