26 Containers library [containers]

26.3 Sequence containers [sequences]

26.3.10 Class template list [list]

26.3.10.3 list capacity [list.capacity]

void resize(size_type sz);

1
#

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

list<T>::iterator it = begin();
advance(it, sz);
erase(it, end());
2
#

Requires: T shall be DefaultInsertable into *this.

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

3
#

Effects: As if by: 

if (sz > size())
  insert(end(), sz-size(), c);
else if (sz < size()) {
  iterator i = begin();
  advance(i, sz);
  erase(i, end());
}
else
  ;                 // do nothing
4
#

Requires: T shall be CopyInsertable into *this.