std::function<int()> f; f(); f is not initialized. What exception is thrown, when you try to call it?

How do you declare a pointer where the memory location being pointed to cannot be altered, but the value being pointed to can?

Which is not a member of std::weak_ptr?

What will be the output? auto fn = [](unsigned char a){ cout << std::hex << (int)a << endl; }; fn(-1);

What is the purpose of std::set_union?

Suppose that a global variable 'x' of type std::atomic with an initializer parameter of 20 should be added to a header and (if necessary) source file so it is available to all files that include it. How should this be implemented where it will cause neither compile nor linker errors when compiling multiple object files together? Assume that a header guard and #include is already present in the header (though not shown in the answers), and that C++11 is enabled.

To use the strlen function in a program, you must also write #include ________.

If you try to add a new item to a full stack, the resulting condition is called a(n) ____.

A function prototype is ____.

To correctly swap two values, you create a(n) ____ variable to hold one of the values.

An array name and index are separated using ____.