pub fn file_as_u64<T: AsRef<Path>>(path: T) -> Result<u64, ()> {
    let line = string_from_file(&path)?;
    line.parse().map_err(|e| {
        debug!(
            "could not parse file ({:?}) as u64: {}",
            path.as_ref().as_os_str(),
            e
        )
    })
}
/// Parse the contents of the file as `u64`. This method anticipates
/// it will be used on files as found in /proc which contain a single
/// literal value which can be represented by type `u64`
Parse the contents of the file as `u64`. This method anticipates
it will be used on files as found in /proc which contain a single
literal value which can be represented by type `u64`
Parse the contents of the file as ` u64 ` . This method anticipates it will be used on files as found in / proc which contain a single literal value which can be represented by type ` u64 `
pub fn file_as_u64<T: AsRef<Path>>(path: T) -> Result<u64, ()> {
    let line = string_from_file(&path)?;
    line.parse().map_err(|e| {
        debug!(
            "could not parse file ({:?}) as u64: {}",
            path.as_ref().as_os_str(),
            e
        )
    })
}
pub fn file_as_u64 < T : AsRef < Path > > ( path : T ) -> Result < u64 , ( ) > { let line = string_from_file ( & path ) ? ; line . parse ( ) . map_err ( | e | { debug ! ( " " path as_ref ( ) as_os_str ( ) e ) } ) }
Parse the contents of the file as `u64`.
Parse the contents of the file as ` u64 ` .
path
T
path
T