Is there a way of applying a function to each member of a struct in c++?

Question

You have a simple struct, say:

typedef struct rect
{
    int x;
    int y;
    int width;
    int height;
}
rect;

And you want to multiply

Answer 1

A solution via a new class:

• Create a class with a template class Array generic array, (see how),
• Fill the array with your properties, one property as an element of the array.
• Ensure all types can be multiplied by a numeric value (or overload the * operator for a type if necessary / create a specific method for that object)
• Create a method multiply that performs a loop on the array and multiplies each element by a given value.