On Wednesday, 16 October 2019 at 19:25:18 UTC, DNoob wrote:
I'm just learning D, so it's very possible that I'm missing a more appropriate function that exists elsewhere, but basically I found today that while I could easily write a cmp function that worked for everything, the one in std.algorithm doesn't seem to:
Yeah, it is primarily for strings, to be used as a sorting predicate.
For numbers, simple less than (for bool comparisons) or subtraction operators (for the integer ones) will do it.
Notice that the docs say "a negative value" rather than -1 specifically. That's because the implementation for integers an be as simple as
return a - b; // if b > a, you get a negative value and thus doesn't really need a specific function.
