description

title

ms.date

f1_keywords

helpviewer_keywords

ms.assetid

Learn more about: Data Alignment

Data Alignment

11/04/2016

data.alignment

data alignment [C++]

35ac3d2d-a4b3-421b-954f-b7372b1f18e1

Data alignment

The following C run-time functions support data alignment.

Data-alignment routines

Routine	Use
`_aligned_free`	Frees a block of memory that was allocated with `_aligned_malloc`or `_aligned_offset_malloc`.
`_aligned_free_dbg`	Frees a block of memory that was allocated with `_aligned_malloc` or `_aligned_offset_malloc` (debug only).
`_aligned_malloc`	Allocates memory on a specified alignment boundary.
`_aligned_malloc_dbg`	Allocates memory on a specified alignment boundary with extra space for a debugging header and overwrite buffers (debug version only).
`_aligned_msize`	Returns the size of a memory block allocated in the heap.
`_aligned_msize_dbg`	Returns the size of a memory block allocated in the heap (debug version only).
`_aligned_offset_malloc`	Allocates memory on a specified alignment boundary.
`_aligned_offset_malloc_dbg`	Allocates memory on a specified alignment boundary (debug version only).
`_aligned_offset_realloc`	Changes the size of a memory block that was allocated with `_aligned_malloc` or `_aligned_offset_malloc`.
`_aligned_offset_realloc_dbg`	Changes the size of a memory block that was allocated with `_aligned_malloc` or `_aligned_offset_malloc` (debug version only).
`_aligned_offset_recalloc`	Changes the size of a memory block that was allocated with `_aligned_malloc` or `_aligned_offset_malloc` and initializes the memory to 0.
`_aligned_offset_recalloc_dbg`	Changes the size of a memory block that was allocated with `_aligned_malloc` or `_aligned_offset_malloc` and initializes the memory to 0 (debug version only).
`_aligned_realloc`	Changes the size of a memory block that was allocated with `_aligned_malloc` or `_aligned_offset_malloc`.
`_aligned_realloc_dbg`	Changes the size of a memory block that was allocated with `_aligned_malloc` or `_aligned_offset_malloc` (debug version only).
`_aligned_recalloc`	Changes the size of a memory block that was allocated with `_aligned_malloc` or `_aligned_offset_malloc` and initializes the memory to 0.
`_aligned_recalloc_dbg`	Changes the size of a memory block that was allocated with `_aligned_malloc` or `_aligned_offset_malloc` and initializes the memory to 0 (debug version only).

See also

Universal C runtime routines by category