Method try_insert

cranelift/bforest/src/map.rs:144–152

Like `insert` but returns an error on allocation failure.

(
        &mut self,
        key: K,
        value: V,
        forest: &mut MapForest<K, V>,
        comp: &C,
    )

    /// Like `insert` but returns an error on allocation failure.
    pub fn try_insert<C: Comparator<K>>(
        &mut self,
        key: K,
        value: V,
        forest: &mut MapForest<K, V>,
        comp: &C,
    ) -> Result<Option<V>, OutOfMemory> {
        self.cursor_mut(forest, comp).try_insert(key, value)
    }

    /// Remove `key` from the map and return the removed value for `key`, if any.
    pub fn remove<C: Comparator<K>>(