Odd to!string call

[Andrej Mitrovic]

Right. Thanks, guys.

I do see how this could possibly cause bugs for the uninitiated.
Someone who is new to D might attempt to use to!string with multiple
arguments, and end up with buggy code like this:

import std.stdio;
import std.conv;

void main()
{
    int x = 2;
    int y = 4;

    // more code..

    writeln(to!string(x, y));  // writes "2", not "2 4", and not "24"
}


On 12/21/10, Simen kjaeraas <simen.kjaras at gmail.com> wrote:
> Andrej Mitrovic <none at none.none> wrote:
>
>> I found this by accident:
>>
>> import std.stdio;
>> import std.conv;
>>
>> void main()
>> {
>>     writeln(to!string(2, 2));  // writes 10
>>     writeln(to!string(1, 0));  // std.conv.ConvException: Radix error
>> }
>>
>> I'm not sure why "std.conv.to" would even take multiple arguments.
>> Bugzilla?
>
> The second parameter is (as indicated by the exception) the radix[1].
> With a radix of 2, 2 is written 10, as radix is binary. Radix 0 makes
> no sense, and thus gives an exception.
>
> It could be said though, that std.conv's documentation is confusing
> at best, and this could be worth putting in Bugzilla.
>
> [1]:
> http://en.wikipedia.org/wiki/Radix#Bases_and_positional_numeral_systems
>
> --
> Simen
>