What is the meaning of the three sections specified between parentheses in a for loop separated by semicolons?

What is true about the variable named ptr? void *ptr;

What is the output of this code? int c=3; char d='A'; std::printf("c is %d and d is %c",c,d);

What is the output of this code? printf("1/2 = %f",(float)(1/2));

What is the difference between a public and a private class member?

What is the value of x after running this code? int x=10, a=-3; x=+a;

Which class(es) can be used to perform both input and output on files in C++?

Which rules apply to operator overloading in C++?

In C++, what is the difference between these two declarations: void foo(); void foo(void);

What is the size of the character array which would hold the value 'Helloo'?

Difference between struct and class types?