Const iterators : vector iterator « vector « C++ Tutorial






#include <vector> 
#include <iostream> 

using namespace std; 

vector<double> makevector(int size){

  vector<double> result;
  for (int i=1; i<=size; i++) { 
    result.push_back(double(i)); 
  } 
  return result; 
} 

void print(const vector<double>& l) 
{ 

  cout << "Size of vector is: " << l.size() << endl; 

  vector<double>::const_iterator i; 

  for (i=l.begin(); i!=l.end(); i++) 
  { 
    cout << (*i) << " "; 
  } 

  cout << endl; 
} 

int main() 
{ 
  vector<double> vector1=makevector(5); 
  vector<double>::iterator bi; 

  // Change element with const iterator 
  cout << "Change first element with const iterator" << endl; 
  vector<double>::const_iterator ci; 
  ci=vector1.end(); 
  ci--; 
  cout << *ci << endl; 
}








16.19.vector iterator
16.19.1.Display contents of vector through an iterator
16.19.2.Use const_iterator to loop through the vector
16.19.3.Change contents of vector through an iterator
16.19.4.iterators for vector
16.19.5.Declare an iterator to a vector
16.19.6.Obtain an iterator to the start of vector
16.19.7.Cycle through v in the forward direction using an iterator.
16.19.8.Cycle through v in the reverse direction using a reverse_iterator.
16.19.9.See if iterator is still in the same spot of memory
16.19.10.Loop through all elements in a vector in reverse order by using rbegn, rend
16.19.11.Reverse iterators
16.19.12.Const iterators
16.19.13.Converting Between Iterators and Indexes in a Vector