free - free allocated memory

Syntax	#include <stdlib.h> void free(void *ptr);
Description	free() releases memory space that was previously reserved using malloc(), calloc() or realloc(). free() is part of a C-specific memory management package with its own free memory management facility. Memory deallocated with free() is not returned to the operating system but is handled by the free memory management facility. ptr is the pointer to the memory area to be released. ptr must be the result of a previous malloc(), calloc(), or realloc() call. Otherwise, the result is undefined.
See also	calloc(), malloc(), realloc(), sdtlib.h.