Zig 0.17.0-dev (Split by item)

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argMax

sort.argMax

pub fn argMax(
    comptime T: type,
    items: []const T,
    context: anytype,
    comptime lessThan: fn (context: @TypeOf(context), lhs: T, rhs: T) bool,
) ?usize

File

lib/std/sort.zig:898

Code

pub fn argMax(
    comptime T: type,
    items: []const T,
    context: anytype,
    comptime lessThan: fn (context: @TypeOf(context), lhs: T, rhs: T) bool,
) ?usize {
    if (items.len == 0) {
        return null;
    }

    var biggest = items[0];
    var biggest_index: usize = 0;
    for (items[1..], 0..) |item, i| {
        if (lessThan(context, biggest, item)) {
            biggest = item;
            biggest_index = i + 1;
        }
    }

    return biggest_index;
}