#include <vector>
#include <iostream>

int main()
{
        for( int i = 0; i < 5; ++i )
        std::cout <<"for(++i)= "<<  i << std::endl;
        for( int i = 0; i < 5; i++ )
        std::cout <<"for(i++)= "<<  i << std::endl;
        for( int i = 0; i < 5; )
        std::cout <<"++i = "<<  ++i << std::endl;
        for( int i = 0; i < 5; )
        std::cout <<"i++ = "<< i++ << std::endl;
// continue inside for loop
        std::cout << "Test continue inside for_loop" << std::endl;
        for( int i = 0; i < 5; ++i ) {
           if (i == 3) continue;
           std::cout <<"i= "<<  i << std::endl;
        }
// break inside for loop
        std::cout << "Test break inside for_loop" << std::endl;
        for( int i = 0; i < 5; ++i ) {
           std::cout <<"i= "<<  i << "  before break" << std::endl;
           if (i == 3) break;
           std::cout <<"i= "<<  i << "  after break" << std::endl;
        }
// test != method
        std::cout << "Test != method" << std::endl;
        for( int i = 0; i != 5; ++i ) {
           std::cout <<"i= "<<  i << std::endl;
        }
// return inside for loop
        std::cout << "Test return inside for_loop" << std::endl;
        for( int i = 0; i < 5; ++i ) {
           std::cout <<"i= "<<  i << std::endl;
           if (i == 3) {
              std::cout <<"i=3 and return "<< std::endl;
              return 1;
           }
        }
        return 0;
}

================================================
$ ./a.exe
for(++i)= 0
for(++i)= 1
for(++i)= 2
for(++i)= 3
for(++i)= 4
for(i++)= 0
for(i++)= 1
for(i++)= 2
for(i++)= 3
for(i++)= 4
++i = 1
++i = 2
++i = 3
++i = 4
++i = 5
i++ = 0
i++ = 1
i++ = 2
i++ = 3
i++ = 4
Test continue inside for_loop
i= 0  before continue
i= 0  after continue
i= 1  before continue
i= 1  after continue
i= 2  before continue
i= 2  after continue
i= 3  before continue
i= 4  before continue
i= 4  after continue
Test break inside for_loop
i= 0  before break
i= 0  after break
i= 1  before break
i= 1  after break
i= 2  before break
i= 2  after break
i= 3  before break
Test != method
i= 0
i= 1
i= 2
i= 3
i= 4
Test return inside for_loop
i= 0
i= 1
i= 2
i= 3
i=3 and return