C++ Pointers and Strings

#include <iostream>
#include <string>

int main(){
   char * astring; //how you declare c strings
   astring = new char[strlen("Hello")+1]; // you must set the size plus the null byte '\0'
   strcpy(astring, "Hello"); // how things are copied into a c string
   cout << astring << endl; // Hello
   delete [] astring; // If you new you must delete; however delete comes first
   astring = new char[30]; // Test this by typing in way more then 30 characters
   cin >> astring;
   cout << astring << endl;
}

/*
int main(){
   //With strings, it is much easier b/c you don't worry about memory
   // The trade off is speed; however, it is best to use strings anyway
   // Make sure you #include <string>
   string astring = "Hello";
   cout << astring << endl;
   cin >> astring;
   cout << astring << endl;
   //If you look at the new char[30], you witness a buffer overflow
   // Hackers will type in more characters then allowed to change other parameters
   // This is why I use strings!
}
*/