/*
 *  Alignment requirement and support for unaligned accesses
 *
 *  Assume unaligned accesses are not supported unless specifically allowed
 *  in the target platform.  Some platforms may support unaligned accesses
 *  but alignment to 4 or 8 may still be desirable.  Note that unaligned
 *  accesses (and even pointers) relative to natural alignment (regardless
 *  of target alignment) are technically undefined behavior and thus
 *  compiler/architecture specific.
 */

/* If not forced, use safe default for alignment. */
#if !defined(DUK_USE_ALIGN_BY)
#define DUK_USE_ALIGN_BY 8
#endif

/* Compiler specific hackery needed to force struct size to match alignment,
 * see e.g. duk_hbuffer.h.
 *
 * http://stackoverflow.com/questions/11130109/c-struct-size-alignment
 * http://stackoverflow.com/questions/10951039/specifying-64-bit-alignment
 */
#if !(defined(DUK_USE_PACK_MSVC_PRAGMA) || defined(DUK_USE_PACK_GCC_ATTR) || \
      defined(DUK_USE_PACK_CLANG_ATTR) || defined(DUK_USE_PACK_DUMMY_MEMBER))
#define DUK_USE_PACK_DUMMY_MEMBER
#endif