HP 3000 Manuals HP 3000 Manuals
free
Frees a block of allocated memory.
Syntax
#include <stdlib.h>
void free (void *ptr);
Parameters
ptr A pointer to a block of memory previously allocated by a
call to calloc(), malloc(), or realloc().
Return Values
None.
Description
The free function frees the block of memory pointed to by ptr, making the
space available for further allocation. The contents of the block are
destroyed. The argument to free() is a pointer to a block previously
allocated by calloc(), malloc(), or realloc().
The malloc and free functions provide a simple generalized memory
allocation package.
Undefined results occur if some random pointer is handed to free().
See Also
calloc(), malloc(), realloc(), ANSI C 4.10.3.2, POSIX.1 8.1