Method clear

src/fast.rs:79–88

(&mut self)

    }

    pub fn clear(&mut self) {
        // Safety: same as `Vec::clear` except `self.end = self.start` instead of `self.len = 0` but
        // these are equivalent operations. Can't use `self.mut_vec(Vec::clear)` because T::drop
        // panicking would double free elements.
        unsafe {
            let elems: *mut [T] = self.as_mut_slice();
            self.end = self.start;
            std::ptr::drop_in_place(elems);
        }
    }

    pub fn reserve(&mut self, additional: usize) {
        if additional > sub_ptr(self.capacity, self.end) {