How to return Ok unit type of std::result<(), E>?
Question
If I define a function:
fn f() -> Result<(), E> {
// How to return Ok()?
}
How can I return the Ok in std::result with the unit type () ?
2 answers
solution1
15 ACCPTED 2015-01-14 15:05:28
The only value of type () is () , so just put that inside the Ok constructor:
fn f() -> Result<(), E> {
Ok(())
}
solution2
4 2015-01-14 15:06:06
Use Ok(()) as in
fn f() -> Result<(), E> {
Ok(())
}
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