cast usize to T

[low tundra]

i want to make a function that takes the mean of a slice given it and its type

pub fn mean(comptime T: type, slice: []T) T {
    return sum(T, slice) / slice.len;
}

sum() function works fine

mean() doesn't work if T is f32 or f64

because theres a division between float and usize

i know about using @as(T, @floatFromInt(slice.len))

but then if T is not a float this doesn't work

i'd like to reuse this function as i'm dealing with both float and unsigned slices

[vivid girder]

I believe that std.math.lossyCast might be what you are looking for.

pub fn mean(comptime T: type, slice: []T) T {
    return sum(T, slice) / std.math.lossyCast(T, slice.len);
}