Re: it's time to change how things are printed

[Don]

Steven Schveighoffer wrote:

On Thu, 18 Nov 2010 15:13:19 -0500, Don <nos...@nospam.com> wrote:

Lars T. Kyllingstad wrote:

First of all, I think Andrei has already implemented this in the write*() functions. I use this toString() style also for std.complex.Complex, and I can print complex numbers no problem.

Really? It doesn't work for me.

import std.complex;
import std.stdio;

void main()
{
     cdouble z2 = 10 + 1.5e-6i;
     Complex!(double) z;
     z.re = 10;
     z.im = 1.5e-6;
     writefln("z= %.16f z2 = %.16f", z, z2);
}

Prints:
z = 10+1.5e-06i z2 = 10.0000000000000000+0.0000015000000000i

Haven't tested, but docs state that

"Note that complex numbers are floating point numbers, so the only valid format characters are 'e', 'f', 'g', 'a', and 's', where 's' gives the default behaviour. ***Positional parameters are not valid in this context.***"

I'd suggest trying one of those other format types without the numeric parts.

-Steve

    writefln("z = %f z2 = %f", z, z2);
z = 10+1.5e-06i z2 = 10.000000+0.000001i
    writefln("z = %e z2 = %e", z, z2);
z = 10+1.5e-06i z2 = 1.000000e+01+1.500000e-06i
    writefln("z = %a z2 = %a", z, z2);
z = 10+1.5e-06i z2 = 0x1.4p+3+0x1.92a737110e454p-20i