/// Provides the functionality of `cvt` for a closure.
Provides the functionality of `cvt` for a closure.
Provides the functionality of ` cvt ` for a closure .
pub fn cvt_r<T, F>(mut f: F) -> io::Result<T>
    where F: FnMut() -> T, T: One + Neg<Output=T> + PartialEq
{
    cvt(f())
}
pub fn cvt_r < T , F > ( mut f : F ) -> io :: Result < T > where F : FnMut ( ) -> T , T : One + Neg < Output = T > + PartialEq { cvt ( f ( ) ) }
Provides the functionality of `cvt` for a closure.
Provides the functionality of ` cvt ` for a closure .
f
F