The document describes the function call stack when main() calls b(), which then calls a(). The call stack shows the order of function calls with main() at the top, then b(), and a() at the bottom, with each function activation stored on the stack.

1. What is the function call stack?
void a()
{
}
void b()
{
a();
}
int main()
{
b();
}

2. What is the function call stack?
Stack Framemain()
void a()
{
}
void b()
{
a();
}
int main()
{
b();
}

3. What is the function call stack?
Stack Framemain()
void a()
{
}
void b()
{
a();
}
int main()
{
b();
}
Stack Frameb()

4. What is the function call stack?
Stack Framemain()
void a()
{
}
void b()
{
a();
}
int main()
{
b();
}
Stack Frame
a() Stack Frame
b()

5. What is the function call stack?
Stack Framemain()
void a()
{
}
void b()
{
a();
}
int main()
{
b();
}
Stack Frameb()

6. What is the function call stack?
Stack Framemain()
void a()
{
}
void b()
{
a();
}
int main()
{
b();
}

7. What is the function call stack?
void a()
{
}
void b()
{
a();
}
int main()
{
b();
}