What does “typedef void (*Something)()” mean

Question

I am trying to understand what this means, the code I am looking at has

in .h

typedef void (*MCB)();
static MCB     m_process;

in .

Answer 1

The typedef defines MCB as the type of a pointer to a function that takes no arguments, and returns void.

Note that MCB Modes::m_process = NULL; is C++, not C. Also, in C, the typedef should really be typedef void (*MCB)(void);.

I'm not sure what you mean by "the memory was freed". You have a static pointer to a function; a function cannot be freed. At most, your pointer has been reset somewhere. Just debug with a memory watch on m_process.