reference operator[](unsigned idx) {
- assert (Begin + idx < End);
+ assert(Begin + idx < End);
return Begin[idx];
}
const_reference operator[](unsigned idx) const {
- assert (Begin + idx < End);
+ assert(Begin + idx < End);
return Begin[idx];
}
RHS.begin(), RHS.end());
}
+ /// capacity - Return the total number of elements in the currently allocated
+ /// buffer.
+ size_t capacity() const { return Capacity - Begin; }
+
+ /// set_size - Set the array size to \arg N, which the current array must have
+ /// enough capacity for.
+ ///
+ /// This does not construct or destroy any elements in the vector.
+ ///
+ /// Clients can use this in conjunction with capacity() to write past the end
+ /// of the buffer when they know that more elements are available, and only
+ /// update the size later. This avoids the cost of value initializing elements
+ /// which will only be overwritten.
+ void set_size(unsigned N) {
+ assert(N <= capacity());
+ End = Begin + N;
+ }
+
private:
/// isSmall - Return true if this is a smallvector which has not had dynamic
/// memory allocated for it.