Given the below class, what is the correct syntax of declaring a functor that adds 10 to each of the passed argument?
class Add
{
int x;
public:
Add(int x){
this->x = x;
}
int operator()(int a){
return x+a;
}
};
class Add
{
int x;
public:
Add(int x){
this->x = x;
}
int operator()(int a){
return x+a;
}
};A. Add add_10(1);
B. Add ADD_10(10);
C. Add add_10(10);
D. Add add_10(5);
Answer: Option C
What does the 'sizeof' operator return in C++?
A. Size of a data type in bits
B. Size of a data type in bytes
C. Size of a variable in bytes
D. Size of a variable in bits
What is the purpose of the 'static' keyword in C++?
A. To declare a variable with dynamic storage duration
B. To declare a constant
C. To declare a variable with external linkage
D. To declare a variable with static storage duration
What is the difference between '++i' and 'i++' in C++?
A. None of the above
B. They both have the same effect
C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it
D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it

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