zig/doc/langref/test_for_nested_break.zig

const std = @import("std");
const expectEqual = std.testing.expectEqual;

test "nested break" {
    var count: usize = 0;
    outer: for (1..6) |_| {
        for (1..6) |_| {
            count += 1;
            break :outer;
        }
    }
    try expectEqual(1, count);
}

test "nested continue" {
    var count: usize = 0;
    outer: for (1..9) |_| {
        for (1..6) |_| {
            count += 1;
            continue :outer;
        }
    }

    try expectEqual(8, count);
}

// test