23 Containers library [containers]

23.3 Sequence containers [sequences]

23.3.5 Class template list [list] list capacity [list.capacity]

void resize(size_type sz);

Effects: If size() < sz, appends sz - size() value-initialized elements to the sequence. If sz <= size(), equivalent to

list<T>::iterator it = begin();
advance(it, sz);
erase(it, end());

Requires: T shall be DefaultConstructible.

void resize(size_type sz, const T& c);


if (sz > size())
  insert(end(), sz-size(), c);
else if (sz < size()) {
  iterator i = begin();
  advance(i, sz);
  erase(i, end());
  ;                 // do nothing

Requires: T shall be CopyInsertable into *this.