| 1 | const math = @import("std").math; |
| 2 | const print = @import("std").debug.print; |
| 3 | pub fn main() !void { |
| 4 | var byte: u8 = 255; |
| 5 | |
| 6 | byte = if (math.add(u8, byte, 1)) |result| result else |err| { |
| 7 | print("unable to add one: {s}\n", .{@errorName(err)}); |
| 8 | return err; |
| 9 | }; |
| 10 | |
| 11 | print("result: {}\n", .{byte}); |
| 12 | } |
| 13 | |
| 14 | // exe=fail |