Method push

arrow-buffer/src/buffer/mutable.rs:620–629

(&mut self, item: T)

    /// reasons as [`MutableBuffer::reserve`].
    #[inline]
    pub fn push<T: ToByteSlice>(&mut self, item: T) {
        let additional = std::mem::size_of::<T>();
        self.reserve(additional);
        unsafe {
            let src = item.to_byte_slice().as_ptr();
            let dst = self.data.as_ptr().add(self.len);
            std::ptr::copy_nonoverlapping(src, dst, additional);
        }
        self.len += additional;
    }

    /// Extends the buffer with a new item, without checking for sufficient capacity
    /// # Safety