Well try it :)

You overload an operator when it makes sense to do so.

Say that you create a custom string class MyString.

It makes sense to overload the + operator, but not the ~.

Call the copy constructor.

Let me explain:

Shoe shoe1; // calls the constructor
Shoe shoe_copy(shoe1); // copy constructor
Shoe shoe_copy = shoe1; // copy constructor, even if it seems it's...

shoe_copy=shoe1; will call the assignment operator, not the copy constructor. The copy constructor is called for example when you pass an object to a function by value.

// copy constructor called...

Try darkGDK, it's free and very easy to use. Google it.

result is a local variable, which is destroyed when the functions ends. So a garbage value is destroyed. The best solution is to do what is said by the poster above.

If you need to work with...

Do you have any book that you learn from?

edit:
the way you did it, it will ask only once for the answer and the program will terminate. In my version it will keep asking until you enter the...

#include <iostream>
#include <cstdlib>
#include <iomanip>
#include <ctime>
using namespace std;

int main()
{
srand((unsigned)time(0));
int random_integer1 = 1 + rand() % 500;

const int ANSWER = random_integer1 + random_integer2;


random_integer1 = (rand()%500)+1;
random_integer2 = (rand()%500)+1;


should be

No problem. Post back if you don't get it working.

replace these "
cin >> answer;
cout << "\n";

return 0;

} "

with that code. You will need to return 0 and close the brace of course :p

int input;
const int ANSWER = random_integer1 + random_integer2;

do
{
cin >> input; // get input
} while(input != ANSWER);
/* this will repeat as long as input is not equal to the answer....

Don't forget to #include <cstring> to use strcmp()

Is it an image you changed manually from .jpg (for example) to bmp by just renaming the file?

try static_cast<std::string>(the_LPWSTR_var);

or if it doesn't work


reinterpret_cast<std::string>(the_LPWSTR_var);

Ok.


optimizedImage = SDL_Display_Format(loadedImage);
should be
optimizedImage = SDL_DisplayFormat(loadedImage);
...

Are you sure you added the library files from project settings?