pub fn unused(&mut self) {
        self.updater = Some(Box::new(|cache, system| {
            cache.init(system);
        }))
    }
/// This function should be called whenever the cache is not used, but one
/// still want it to be updated. Future call to `EnergyCache::update` will
/// recompute the full cache.
This function should be called whenever the cache is not used, but one
still want it to be updated. Future call to `EnergyCache::update` will
recompute the full cache.
This function should be called whenever the cache is not used but one still want it to be updated . Future call to ` EnergyCache :: update ` will recompute the full cache .
pub fn unused(&mut self) {
        self.updater = Some(Box::new(|cache, system| {
            cache.init(system);
        }))
    }
pub fn unused ( & mut self ) { self . updater = Some ( Box :: new ( | cache , system | { cache . init ( system ) ; } ) ) }
This function should be called whenever the cache is not used, but one
still want it to be updated.
This function should be called whenever the cache is not used but one still want it to be updated .
&mut self