About C/C++ stack allocation

Question

While studying C++ (and C) I had some particular doubts regarding the working of stack allocation, that I can\'t find a solution to:

1. Does stack allocation c

Answer 1

No, stack allocation does not call malloc/free. The entire stack space is allocated at the start of your program. On entry to each function the stack pointer is advanced sufficiently to allow space on the stack for a "stack frame" which will be where your stack allocated variables reside.