Peer type resolution

[shell lake]

Why can't I sum an f32 with an u8? The following code gives error.
const a : u8 = 9; var b : f32 = 20; b+=a;
I expected that peer type resolution automatically converts the u8 into the f32 type before the sum.

[lime olive]

Floats and integers are a different beast, you have to explicitly convert between them.

[shell lake]

ok so I'm supposed to use @intToFloat function to explicitly do the conversion in these cases right?

[narrow crow]

Yep

const a: u8 = 9;
var b: f32 = 20;
b += @intToFloat(f32, a);

[shell lake]

and what I'm supposed to do when b is a generic type that could be both int or float (of any size)? is there an easy way to check if a type is a float?

[narrow crow]

Sure, std.meta.trait.is(.Float)(T)