pub fn mem_sizes(&self) -> Option<(usize, usize)> {
        if self.flags & info_flags::MEMORY != 0 {
            Some((self.mem_lower as usize, self.mem_upper as usize))
        } else {
            None
        }
    }
/// Available lower and upper memory sizes, if present.
///
/// Only accurate for systems with fewer than 4 GiB of upper memory.
Available lower and upper memory sizes, if present.
Only accurate for systems with fewer than 4 GiB of upper memory.
Available lower and upper memory sizes if present . Only accurate for systems with fewer than 4 GiB of upper memory .
pub fn mem_sizes(&self) -> Option<(usize, usize)> {
        if self.flags & info_flags::MEMORY != 0 {
            Some((self.mem_lower as usize, self.mem_upper as usize))
        } else {
            None
        }
    }
pub fn mem_sizes ( & self ) -> Option < ( usize , usize ) > { if self . flags & info_flags :: MEMORY != 0 { Some ( ( self . mem_lower as usize , self . mem_upper as usize ) ) } else { None } }
Available lower and upper memory sizes, if present.
Available lower and upper memory sizes if present .
&self