diff options
Diffstat (limited to 'src/malloc.c')
| -rw-r--r-- | src/malloc.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/src/malloc.c b/src/malloc.c index 9b45607..694f8c4 100644 --- a/src/malloc.c +++ b/src/malloc.c @@ -221,80 +221,6 @@ void* zalloc(size_t size) /** - * Variant of `malloc` that extends, or shrinks, an existing allocation, - * if beneficial and possible, or creates a new allocation with the new - * size, copies the data, and frees the old allocation. The returned - * pointer has an alignment usable for any compiler-independent intrinsic - * data type, if a new pointer is returned. - * - * On error, `ptr` is not freed. - * - * @etymology Memory (realloc)ation. - * - * @param ptr Pointer to the beginning of the old memory allocation. - * The process may crash if it does not point to the - * beginning of a memory allocation on the heap. - * However, if it is `NULL`, this function will behave - * like `malloc`. - * @param size The new allocation size. If zero, this function will - * behave like `free`, and will return `NULL`. - * @return Pointer to the beginning of the new allocation. - * If `size` is zero, `NULL` is returned. On error `NULL` - * is returned and `errno` is set to indicate the error. - * - * @throws ENOMEM The process cannot allocate more memory. - * - * @since Always. - */ -void* realloc(void* ptr, size_t size) -{ - return fast_realloc(ptr, size); -} - - -/** - * Free a memory allocation. - * - * As a slibc extension, `errno` is guaranteed not to be set. - * - * @etymology (Free) allocated memory. - * - * @param ptr Pointer to the beginning of the memory allocation. - * The process may crash if it does not point to the - * beginning of a memory allocation on the heap. - * However, if it is `NULL`, nothing will happen. - * - * @since Always. - */ -void free(void* ptr) -{ - fast_free(ptr); -} - - -/** - * This function is identical to `free`. - * Any argument beyond the first argument, is ignored. - * - * This function uses variadic arguments because there - * there are multiple conflicting specifications for `cfree`. - * - * As a slibc extension, `errno` is guaranteed not to be set. - * - * @param ptr Pointer to the beginning of the memory allocation. - * The process may crash if it does not point to the - * beginning of a memory allocation on the heap. - * However, if it is `NULL`, nothing will happen. - * - * @since Always. - */ -void cfree(void* ptr, ...) -{ - fast_free(ptr); -} - - -/** * Variant of `malloc` that returns an address with a * specified alignment. * @@ -350,36 +276,6 @@ void* memalign(size_t boundary, size_t size) /** - * `posix_memalign(p, b, n)` is equivalent to - * `(*p = memalign(b, n), *p ? 0 : errno)`, except - * `boundary` must also be a multiple of `sizeof(void*)`, - * and `errno` is unspecified. - * - * As a GNU-compliant slibc extension, memory allocated - * with this function can be freed with `free`. - * - * @etymology (POSIX)-extension: (mem)ory alignment. - * - * @param ptrptr Output parameter for the allocated memory. - * @param boundary The alignment. - * @param size The number of bytes to allocated. - * @return Zero on success, a value for `errno` on error. - * - * @throws ENOMEM The process cannot allocate more memory. - * @throws EINVAL If `boundary` is not a power-of-two multiple of `sizeof(void*)`. - * - * @since Always. - */ -int posix_memalign(void** ptrptr, size_t boundary, size_t size) -{ - if (boundary < sizeof(void*)) - return EINVAL; - *ptrptr = memalign(boundary, size); - return *ptrptr ? 0 : errno; -} - - -/** * `valloc(n)` is equivalent to `memalign(sysconf(_SC_PAGESIZE), n)`. * * As a GNU-compliant slibc extension, memory allocated @@ -437,55 +333,3 @@ void* pvalloc(size_t size) return memalign(boundary, full_size); } - -/** - * This function is identical to `memalign`, - * except it can be freed with `free`. - * - * Variant of `malloc` that returns an address with a - * specified alignment. - * - * It is unspecified how the function works. This implemention - * will allocate a bit of extra memory and shift the returned - * pointer so that it is aligned. - * - * @etymology (Alig)ned memory (alloc)ation. - * - * @param boundary The alignment. - * @param size The number of bytes to allocated. - * @return Pointer to the beginning of the new allocation. - * If `size` is zero, this function will either return - * `NULL` (that is what this implement does) or return - * a unique pointer that can later be freed with `free`. - * `NULL` is returned on error, and `errno` is set to - * indicate the error. - * - * @throws ENOMEM The process cannot allocate more memory. - * @throws EINVAL If `boundary` is not a power of two. - * - * @since Always. - */ -void* aligned_alloc(size_t boundary, size_t size) -{ - return memalign(boundary, size); -} - - -/** - * This function returns the allocation size of - * a memory segment. - * - * `p = malloc(n), malloc_usable_size(p)` will return `n`. - * - * @etymology (`malloc`)-subsystem: user-(usable size) of allocation. - * - * @param segment The memory segment. - * @return The size of the memory segment, 0 if `segment` is `NULL`. - * - * @since Always. - */ -size_t malloc_usable_size(void* segment) -{ - return allocsize(segment); -} - |