1const std = @import("std");
 2
 3pub fn main() void {
 4    const number = getNumberOrFail() catch unreachable;
 5    std.debug.print("value: {}\n", .{number});
 6}
 7
 8fn getNumberOrFail() !i32 {
 9    return error.UnableToReturnNumber;
10}
11
12// exe=fail