strings stl

[adrian suri]

HI

does anyone know of a quike way to reverse an stl string




#include <Iostream>
using namespace std;
#include<string>
#include<cstdlib> // includes clearscreen function exit etc

string firstName;
cout<< "Please enter your first name" <<endl;
cin>>firstName;
firstnameLeng=firstName.size();
firstName.reverse() // does not work

adrian

 

[Rolf Magnus]

HI

does anyone know of a quike way to reverse an stl string

Yes. std::reverse().

#include <Iostream>

That must be:

using namespace std;
#include<string>
#include<cstdlib> // includes clearscreen function exit etc

string firstName;
cout<< "Please enter your first name" <<endl;
cin>>firstName;
firstnameLeng=firstName.size();
firstName.reverse() // does not work

std::reverse(firstName.begin(), firstName.end());

 

[adrian suri]

Hi

thanks for the fast reply, one more question, is there anyway to have
the new reversed string assigned to another string

const string message("my message will never be changed");
string revstr // create a new string
revstr=reverse(message.begin(), message.end()); // does not work but
// this is the type of syntax I am looking for, I am using watcom 1.3
//with stl port, so it works without the std::reverse

adrian

thanks

 

[Peter Julian]

Hi

thanks for the fast reply, one more question, is there anyway to have
the new reversed string assigned to another string

#include <iostream>
#include <string>
#include <algorithm>

int main()
{
const std::string message("my message will never be changed");
std::string s_reversed(message);
std::reverse(s_reversed.begin(), s_reversed.end());

std::cout << message << "\n";
std::cout << s_reversed << "\n";

return 0;
}

 

[adrian suri]

Hi thanks Peter


adrian

#include <iostream>
#include <string>
#include <algorithm>

int main()
{
const std::string message("my message will never be changed");
std::string s_reversed(message);
std::reverse(s_reversed.begin(), s_reversed.end());

std::cout << message << "\n";
std::cout << s_reversed << "\n";

return 0;
}

 

[Pete Becker]

#include <iostream>
#include <string>
#include <algorithm>

int main()
{
const std::string message("my message will never be changed");
std::string s_reversed(message);
std::reverse(s_reversed.begin(), s_reversed.end());

std::cout << message << "\n";
std::cout << s_reversed << "\n";

return 0;
}

Also consider

std::string s_reversed(message.rbegin(), message.rend());