FREE(3) 386BSD Programmer's Manual FREE(3)
NAME
free - free up memory allocated with malloc, calloc or realloc
SYNOPSIS
#include <stdlib.h>
void
free(void *ptr)
DESCRIPTION
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,
general havoc may occur.
RETURN VALUES
The free() function returns no value.
SEE ALSO
calloc(3), malloc(3), realloc(3)
STANDARDS
The free() function conforms to ANSI C3.159-1989 (``ANSI C'').
BSD Experimental June 29, 1991 1