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/* See LICENSE file for copyright and license details. */
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* The product of all arguments except `clear` and
* `alignment`, up to the first 0, will be used as
* the number of bytes to allocated
*
* @param clear Non-zero if the memory should be initialised
* @param alignment The alignment, must be a power of 2
* @param n First factor for the allocation size, must not be 0
* @param ap The rest of the factors for the allocation size,
* all arguments should have the type `size_t`, and
* list must end with 0 (which is not factor)
* @return A unique pointer with at least the specified size
* and alignment; `NULL` on failure
* @throws EINVAL `n` is 0 or `alignment` is not a power of 2
* @throws ENOMEM Could not allocated enough memory
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(2), __warn_unused_result__)))
void *libsimple_valigned_alloczn(int, size_t, size_t, va_list);
#ifndef valigned_alloczn
# define valigned_alloczn libsimple_valigned_alloczn
#endif
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* @param clear Non-zero if the memory should be initialised
* @param alignment The alignment, must be a power of 2
* @param n The number of bytes to allocate, the behaviour of
* this function is unspecified for the value 0
* @return A unique pointer with at least the specified size
* and alignment; `NULL` on failure
* @throws EINVAL `n` is 0 or `alignment` is not a power of 2
* @throws ENOMEM Could not allocated enough memory
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(2), __alloc_size__(3), __warn_unused_result__)))
inline void *
libsimple_aligned_allocz(int clear__, size_t alignment__, size_t n__)
{
#if defined(aligned_alloc) || defined(_ISOC11_SOURCE)
void *ret__ = aligned_alloc(alignment__, n__);
if (ret__ && clear__)
memset(ret__, 0, n__);
return ret__;
#else
if (!alignment__ || alignment__ % sizeof(void *)) {
errno = EINVAL;
return NULL;
}
return libsimple_memalloc(n__,
LIBSIMPLE_MEMALLOC_CONDITIONAL_ZERO_INIT, clear__,
LIBSIMPLE_MEMALLOC_ALIGNMENT, alignment__,
LIBSIMPLE_MEMALLOC_END);
#endif
}
#ifndef aligned_allocz
# define aligned_allocz libsimple_aligned_allocz
#endif
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* The product of all arguments except `clear` and
* `alignment`, up to the first 0, will be used as
* the number of bytes to allocated
*
* @param clear Non-zero if the memory should be initialised
* @param alignment The alignment, must be a power of 2
* @param n First factor for the allocation size, must not be 0
* @param ... The rest of the factors for the allocation size,
* all arguments should have the type `size_t`, and
* list must end with 0 (which is not factor)
* @return A unique pointer with at least the specified size
* and alignment; `NULL` on failure
* @throws EINVAL `n` is 0 or `alignment` is not a power of 2
* @throws ENOMEM Could not allocated enough memory
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(2), __warn_unused_result__)))
inline void *
libsimple_aligned_alloczn(int clear__, size_t alignment__, size_t n__, ... /*, (size_t)0 */)
{
va_list ap__;
va_start(ap__, n__);
return libsimple_valigned_alloczn(clear__, alignment__, n__, ap__);
va_end(ap__);
}
#ifndef aligned_alloczn
# define aligned_alloczn libsimple_aligned_alloczn
#endif
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* On failure, the `libsimple_enprintf` function is called,
* cause the program to print an error message and exit,
* see `libsimple_enprintf` for more information
*
* @param status The exit value for the process in case of failure
* @param clear Non-zero if the memory should be initialised
* @param alignment The alignment, must be a power of 2
* @param n The number of bytes to allocate, the behaviour of
* this function is unspecified for the value 0
* @return A unique pointer with at least the specified size
* and alignment
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(3), __alloc_size__(4), __warn_unused_result__, __returns_nonnull__)))
void *libsimple_enaligned_allocz(int, int, size_t, size_t);
#ifndef enaligned_allocz
# define enaligned_allocz libsimple_enaligned_allocz
#endif
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* The product of all arguments except `status`,
* `clear`, and `alignment`, up to the first 0,
* will be used as the number of bytes to allocated
*
* On failure, the `libsimple_enprintf` function is called,
* cause the program to print an error message and exit,
* see `libsimple_enprintf` for more information
*
* @param status The exit value for the process in case of failure
* @param clear Non-zero if the memory should be initialised
* @param alignment The alignment, must be a power of 2
* @param n First factor for the allocation size, must not be 0
* @param ap The rest of the factors for the allocation size,
* all arguments should have the type `size_t`, and
* list must end with 0 (which is not factor)
* @return A unique pointer with at least the specified size
* and alignment
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(3), __warn_unused_result__, __returns_nonnull__)))
void *libsimple_envaligned_alloczn(int, int, size_t, size_t, va_list);
#ifndef envaligned_alloczn
# define envaligned_alloczn libsimple_envaligned_alloczn
#endif
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* The product of all arguments except `status`,
* `clear`, and `alignment`, up to the first 0,
* will be used as the number of bytes to allocated
*
* On failure, the `libsimple_enprintf` function is called,
* cause the program to print an error message and exit,
* see `libsimple_enprintf` for more information
*
* @param status The exit value for the process in case of failure
* @param clear Non-zero if the memory should be initialised
* @param alignment The alignment, must be a power of 2
* @param n First factor for the allocation size, must not be 0
* @param ... The rest of the factors for the allocation size,
* all arguments should have the type `size_t`, and
* list must end with 0 (which is not factor)
* @return A unique pointer with at least the specified size
* and alignment
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(3), __warn_unused_result__, __returns_nonnull__)))
inline void *
libsimple_enaligned_alloczn(int status__, int clear__, size_t alignment__, size_t n__, ... /*, (size_t)0 */)
{
va_list ap__;
va_start(ap__, n__);
return libsimple_envaligned_alloczn(status__, clear__, alignment__, n__, ap__);
va_end(ap__);
}
#ifndef enaligned_alloczn
# define enaligned_alloczn libsimple_enaligned_alloczn
#endif
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* On failure, the `libsimple_eprintf` function is called,
* cause the program to print an error message and exit,
* see `libsimple_eprintf` for more information
*
* @param alignment The alignment, must be a power of 2
* @param n The number of bytes to allocate, the behaviour of
* this function is unspecified for the value 0
* @return A unique pointer with at least the specified size
* and alignment
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(2), __alloc_size__(3), __warn_unused_result__, __returns_nonnull__)))
inline void *
libsimple_ealigned_allocz(int clear__, size_t alignment__, size_t n__)
{
return libsimple_enaligned_allocz(libsimple_default_failure_exit, clear__, alignment__, n__);
}
#ifndef ealigned_allocz
# define ealigned_allocz libsimple_ealigned_allocz
#endif
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* The product of all arguments except `clear` and
* `alignment`, up to the first 0, will be used as
* the number of bytes to allocated
*
* On failure, the `libsimple_eprintf` function is called,
* cause the program to print an error message and exit,
* see `libsimple_eprintf` for more information
*
* @param clear Non-zero if the memory should be initialised
* @param alignment The alignment, must be a power of 2
* @param n First factor for the allocation size, must not be 0
* @param ap The rest of the factors for the allocation size,
* all arguments should have the type `size_t`, and
* list must end with 0 (which is not factor)
* @return A unique pointer with at least the specified size
* and alignment
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(2), __warn_unused_result__, __returns_nonnull__)))
inline void *
libsimple_evaligned_alloczn(int clear__, size_t alignment__, size_t n__, va_list ap__)
{
return libsimple_envaligned_alloczn(libsimple_default_failure_exit, clear__, alignment__, n__, ap__);
}
#ifndef evaligned_alloczn
# define evaligned_alloczn libsimple_evaligned_alloczn
#endif
/**
* Dynamically allocates heap allocated, optionally
* initialised, memory with custom alignment
*
* The product of all arguments except `clear` and
* `alignment`, up to the first 0, will be used as
* the number of bytes to allocated
*
* On failure, the `libsimple_eprintf` function is called,
* cause the program to print an error message and exit,
* see `libsimple_eprintf` for more information
*
* @param clear Non-zero if the memory should be initialised
* @param alignment The alignment, must be a power of 2
* @param n First factor for the allocation size, must not be 0
* @param ... The rest of the factors for the allocation size,
* all arguments should have the type `size_t`, and
* list must end with 0 (which is not factor)
* @return A unique pointer with at least the specified size
* and alignment
*/
LIBSIMPLE_GCC_ONLY__(__attribute__((__malloc__, __alloc_align__(2), __warn_unused_result__, __returns_nonnull__)))
inline void *
libsimple_ealigned_alloczn(int clear__, size_t alignment__, size_t n__, ... /*, (size_t)0 */)
{
va_list ap__;
va_start(ap__, n__);
return libsimple_evaligned_alloczn(clear__, alignment__, n__, ap__);
va_end(ap__);
}
#ifndef ealigned_alloczn
# define ealigned_alloczn libsimple_ealigned_alloczn
#endif
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