pub unsafe fn update<T>(name: &[u8], value: T) -> Result<T>Expand description
Uses the null-terminated string name as key to the MALLCTL NAMESPACE and
writes its value returning its previous value.
ยงSafety
This function is unsafe because it is possible to use it to construct an
invalid T, for example, by passing T=u8 for a key expecting bool. The
sizes of bool and u8 match, but bool cannot represent all values that
u8 can.