pub type MapInsertFn = for<'map, 'key, 'value> unsafe fn(_: Opaque<'map>, _: Opaque<'key>, _: Opaque<'value>);Expand description
Insert a key-value pair into the map
§Safety
The map parameter must point to aligned, initialized memory of the correct type.
key and value are moved out of (with std::ptr::read) — they should be deallocated
afterwards but NOT dropped.