Function cvt
pub fn cvt<T: IsMinusOne>(t: T) -> Result<T>Converts native return values to Result using the -1 means error is in errno convention.
Non-error values are Ok-wrapped.
cvtpub fn cvt<T: IsMinusOne>(t: T) -> Result<T>Converts native return values to Result using the -1 means error is in errno convention.
Non-error values are Ok-wrapped.