Bug? 0 is less than -10

[Meta via Digitalmars-d-learn]

On Tuesday, 6 October 2015 at 14:46:56 UTC, tcak wrote:
> Maybe I am just too stressed out to see the problem.
>
> [code]
> import std.stdio;
>
> void main(){
> 	size_t dec = 0;
>
> 	writeln( dec, " ", (dec <= -10), " ", (dec >= 10), " ", ((dec 
> <= -10) || (dec >= 10)) );
> }
> [/code]
>
> [output]
> 0 true false true
> [/output]
>
> How is it generating "true" for (dec <= -10) ? Is there a 
> special casting or something?
>
> DMD 2.068.2, Ubuntu 64-bit

If you need to mix signed and unsigned values but want to avoid 
this issue, you an use the comparison functions from 
std.functional.

http://dlang.org/phobos/std_functional.html#.lessThan