Allocators
The Allocators offer allocators - C++ structures for memory allocation.
A general introduction
into the subject of memory allocation might be useful. When looking for an
allocator, you should probably first consider the
allocators in the GNU libstdc++.
AlignAllocator
The AlignAllocator allocates memory that is aligned on a chosen
boundary. The alignment is by default chosen on an address divisable by 4 * N
* sizeof(T), where N is a specified number of elements. This
alignment allows SIMD instruction such as MMX, SSE and SSE2 to be used on the
data, thus providing significant speedup over non-aligned data. The allocation
is done using the posix_memalign system call.
The formal definition is:
template<typename _Tp, unsigned N = 4u>
class AlignAllocator;
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