doc/langref/test_sentinel_mismatch.zig


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

test "sentinel mismatch" {
    var array = [_]u8{ 3, 2, 1, 0 };

    // Creating a sentinel-terminated slice from the array with a length of 2
    // will result in the value `1` occupying the sentinel element position.
    // This does not match the indicated sentinel value of `0` and will lead
    // to a runtime panic.
    var runtime_length: usize = 2;
    _ = &runtime_length;
    const slice = array[0..runtime_length :0];

    _ = slice;
}

// test_safety=sentinel mismatch