|
const print = @import("std").debug.print;
|
||
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|
||
|
|
pub fn main() void {
|
||
|
|
const result = getNumberOrFail();
|
||
|
|
|
||
|
|
if (result) |number| {
|
||
|
|
print("got number: {}\n", .{number});
|
||
|
|
} else |err| {
|
||
|
|
print("got error: {s}\n", .{@errorName(err)});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn getNumberOrFail() !i32 {
|
||
|
|
return error.UnableToReturnNumber;
|
||
|
|
}
|
||
|
|
|
||
|
|
// exe=succeed
|