Adding More Array Elements?

Vermillion · 09-14-2008, 09:23 PM

On PHP, you can add more elements to your array with different methods. My preferred method is:

PHP Code:

  person[1] = "James";

person[2] = "Andy";

 
person[] = "Nick"; //Notice there is no number inside the brackets. That's how I add elements to my arrays on PHP.

Can I do something similar with C++? Or how can I add more elements to my arrays?

cpjust · 09-14-2008, 09:24 PM

Easy... use a std::vector instead of an array.

rags_to_riches · 09-14-2008, 10:02 PM

Closest thing to a PHP associative array in C++ is the Standard Template Library's map container. However, even that requires an actual key, so cpjust is right; for the example you've provided, an STL vector would probably make more sense:

Code:

#include <iostream>
#include <vector>
#include <string>

int main()
{
    std::vector<std::string> myArray;

    myArray.push_back("James"); 
    myArray.push_back("Andy");
    myArray.push_back("Nick");

    for (unsigned int i = 0; i < myArray.size(); ++i)
    {
        std::cout << "Element " << i << ": " << myArray[i] << std::endl;
    }

    return 0;
}

09-14-2008, 09:23 PM	#1
Vermillion Registered User Join Date: Aug 2008 Location: Bolivia Posts: 3	Adding More Array Elements? On PHP, you can add more elements to your array with different methods. My preferred method is: PHP Code: `person[1] = "James"; person[2] = "Andy"; person[] = "Nick"; //Notice there is no number inside the brackets. That's how I add elements to my arrays on PHP.` Can I do something similar with C++? Or how can I add more elements to my arrays?
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09-14-2008, 09:24 PM	#2
cpjust and the hat of sweating Join Date: Aug 2007 Location: Toronto, ON Posts: 3,271	Easy... use a std::vector instead of an array. __________________ "I am probably the laziest programmer on the planet, a fact with which anyone who has ever seen my code will agree." - esbo, 11/15/2008
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09-14-2008, 10:02 PM	#3
rags_to_riches and the Hat of Ass Join Date: Dec 2007 Posts: 809	Closest thing to a PHP associative array in C++ is the Standard Template Library's map container. However, even that requires an actual key, so cpjust is right; for the example you've provided, an STL vector would probably make more sense: Code: #include <iostream> #include <vector> #include <string> int main() { std::vector<std::string> myArray; myArray.push_back("James"); myArray.push_back("Andy"); myArray.push_back("Nick"); for (unsigned int i = 0; i < myArray.size(); ++i) { std::cout << "Element " << i << ": " << myArray[i] << std::endl; } return 0; }
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