std::deque::resize

Parameters

n

New container size, expressed in number of elements.
Member type size_type is an unsigned integral type.

val

Object whose content is copied to the added elements in case that n is greater than the current container size.
If not specified, the default constructor is used instead.
Member type value_type is the type of the elements in the container, defined in deque as an alias of the first template parameter (T).

Return Value

Example

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// resizing deque
#include <iostream>
#include <deque>
int main ()
{
  std::deque<int> mydeque;
  std::deque<int>::iterator it;
  // set some initial content:
  for (int i=1; i<10; ++i) mydeque.push_back(i);
  mydeque.resize(5);
  mydeque.resize(8,100);
  mydeque.resize(12);
  std::cout << "mydeque contains:";
  for (std::deque<int>::iterator it = mydeque.begin(); it != mydeque.end(); ++it)
    std::cout << ' ' << *it;
  std::cout << '\n';
  return 0;
}

mydeque contains: 1 2 3 4 5 100 100 100 0 0 0 0

Complexity

Iterator validity

Data races

Exception safety

See also

deque::size

Return size (public member function)

deque::clear

Clear content (public member function)

deque::erase

Erase elements (public member function)

deque::max_size

Return maximum size (public member function)