Bool type - can't it be zero / nonzero?

[Chris Wright]

celopmuh wrote:
> From what I gathered, the inconsistency in using bool/int types is for the sake of optimization, and int logical values work faster mainly because they're 0 / non-0, not 0/1 (so that you can use simple subtraction to compare things).

The inconsistency is a compiler-specific optimization: dmd, I believe, 
generates slow code for dealing with bools, so Walter made 
Object.opEquals return an int.

There's faster code available for dealing with bool comparisons that 
make them at least as fast as the integer equivalents. It's been on the 
newsgroup once or twice.