Thread: string length of a variable

Do you mean the length of a string variable?

If so , strlen(char *) would be what you need

Originally Posted by Mythic Fr0st

How do I get the string length of a variable (I have googled this)

Try to post the code that explains what you are trying to do and where do you failed

Originally Posted by kantze

Do you mean the length of a string variable?

If so , strlen(char *) would be what you need

Correct if we are talking about C-strings not C++ strings

Erm, it doesn't seem to work for variables...

int ul = strlen(usr);

Code:

#include <iostream>

using namespace std;

int main ()
{
    string cusername = "Sokjin";
    string cpassword = "abc";
    string admin = "Mythic Fr0st";
    string adminpw = "Myth";
    string usr;
    string pw;
    bool con;
    cout<<"Please signup"<<"\n";
    cout<<"Username: ";
    getline(cin, usr);
    cout<<"Password: ";
    getline(cin, pw);
    cout<<"Age: ";
    getline(cin, usr);
    cout<<"E-mail: ";
    getline(cin, pw);
    
    if (usr == cusername || usr == admin && pw == cpassword || pw == adminpw)
    {
        int ul = strlen(usr);
        int pl = strlen("OMG");
        if (ul <= 12 && pl <= 7)
        {
        con=true;
        }
    }
    if (con == true)
    {
       for (int rt = 0; rt <= 25; rt++)
       {
           if (rt == 7)
           {
               cout<<"Thank you for logging in."<<"\n"<<"\n";
               cout<<"Details: "<<"\n";
               cout<<"Username: "<<usr<<"\n";
               cout<<"Password: "<<pw<<"\n";
       }
           cout<<"\n";
       }
    }
    else
    {
        cout<<"\n"<<"I am sorry, but your username or password is incorrect."<<"\n";
    }
       
    
    cin.get();
}

as I said strlen works for C-strings not C++

Code:

	std::string my ("test");
	string::size_type len = my.length();