What's up ?
Small question – I'm trying to free allocated memory for structure.
It seems like free() gets only pointer and not regular types . my question is basic and simple – is passing pointer to free() frees the pointer or the variable it points at? or both?
It frees the memory what the pointer was pointing to. As long as the memory was allocated dynamically.
From the C99 Draft
The free function causes the space pointed to by ptr to be deallocated, that is, made available for further allocation. If ptr is a null pointer, no action occurs. Otherwise, if the argument does not match a pointer earlier returned by the calloc, malloc, or realloc function, or if the space has been deallocated by a call to free or realloc, the behavior is undefined.Code:#include <stdlib.h> void free(void *ptr);
Fact - Beethoven wrote his first symphony in C
