8 vtfree \- error-checking memory allocators
22 void* vtmalloc(int size)
25 void* vtmallocz(int size)
28 void* vtrealloc(void *ptr, int size)
31 char* vtstrdup(char *s)
34 void vtfree(void *ptr)
36 These routines allocate and free memory.
37 On failure, they print an error message and call
44 returns a pointer to a new, permanently allocated block of at least
57 but, as noted above, do not return on error.
61 but zeros the block before returning it.
62 Memory allocated with all four should be freed with
64 when no longer needed.