Method extend_zeros

arrow-buffer/src/buffer/mutable.rs:650–656

(&mut self, additional: usize)

    /// reserving a capacity that fails for the same reasons as [`MutableBuffer::reserve`].
    #[inline]
    pub fn extend_zeros(&mut self, additional: usize) {
        let new_len = self
            .len
            .checked_add(additional)
            .expect("buffer length overflow");
        self.resize(new_len, 0);
    }

    /// # Safety
    /// The caller must ensure that the buffer was properly initialized up to `len`.