How do I create custom function objects in C++?
An example of an AI chatbot conversation about creating custom function objects in C++.
How do I create custom function objects in C++?
To create a custom function object in C++, you can define a class with an overloaded operator(). This allows instances of the class to be called like functions.
Can you show me a simple example?
Sure! Here's a basic example:
class Adder {
public:
int operator()(int a, int b) {
return a + b;
}
};
int main() {
Adder add;
int result = add(5, 3); // result will be 8
}
What are the advantages of using function objects?
Function objects can maintain state, can be passed to algorithms, and can be more efficient than regular function pointers.
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