Variable merging

OK, now I have rather stupid question, but i really need answer...

I have 2 variables-

Code:

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int x=4;
 int y=3;

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Now, how do I make them sit together in one variable, like int xy=43; ?

int xy = x * 10 + y;
?

use pointers;

Code:

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#include <cstdlib>
#include <iostream>

using namespace std;

int main()
{
    int a = 56; // a equals 56
    int *b = &a; // b is an int pointer, pointing to address of a
   
    *b = 23; // set value of address pointed by b to 23
   
    cout << "a = " << a << endl << "b = " << *b << endl; // dump both vars to screen

    return 0;
}

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Code:

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outcome:
  a = 23
  b = 23

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Here's one way:

Code:

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#include <iostream>
#include <string>

int main()
{
    int x = 4;
    int y = 3;

    char buff1[200];
   
    std::string temp1 = itoa(x, buff1, 10);
    std::string temp2 = itoa(y, buff1, 10);
    std::string result = temp1 + temp2;
   
    int xy = atoi(result.c_str());
   
    std::cout<<"x is: "<<x<<", y is: "<<y<<", xy is: "<<xy<<std::endl;
 
    std::cin.ignore();
    std::cin.get(); 
   
}

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Might as well use a stringstream instead of atoi and the non-standard itoa.

Quote:

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Originally Posted by Daved

Might as well use a stringstream instead of atoi and the non-standard itoa.

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I don't know anything about stringstreams so I will go and read up on them. I didn't even realize that itoa was non standard. Thanks!

cppreference is always good