📏 Slices, Arrays, and Strings

Slices in Zig are a pointer + length pair. []const i32 is a slice of immutable i32 values.

Iterate over a slice with for:

for (items) |item| {
    // use item
}

`items`	result
`[1, 2, 3, 4]`	`10`
`[-1, 1, -2, 2]`	`0`
`[42]`	`42`
`[]`	`0`

Accumulate into a var sum: i32 = 0 and add each element.

Zig

/// Return the sum of all elements in the slice
fn sum(items: []const i32) i32 {
    var total: i32 = 0;
    for (items) |item| {
        total += item;
    }
    return total;
}

Sum a Slice

Max in Slice