/* http://msdn.microsoft.com/en-us/library/aa235362(VS.60).aspx */
#define DUK_NORETURN(decl)  __declspec(noreturn) decl

/* XXX: DUK_UNREACHABLE for msvc? */

#undef DUK_USE_BRANCH_HINTS

/* XXX: DUK_LIKELY, DUK_UNLIKELY for msvc? */
/* XXX: DUK_NOINLINE, DUK_INLINE, DUK_ALWAYS_INLINE for msvc? */

#if defined(DUK_F_DLL_BUILD) && defined(DUK_F_WINDOWS)
#snippet "msvc_visibility.h.in"
#endif

#if defined(DUK_F_CPP)
#define DUK_USE_COMPILER_STRING "msvc++"
#else
#define DUK_USE_COMPILER_STRING "msvc"
#endif

#undef DUK_USE_VARIADIC_MACROS
#if defined(DUK_F_C99)
#define DUK_USE_VARIADIC_MACROS
#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
/* VS2005+ should have variadic macros even when they're not C99. */
#define DUK_USE_VARIADIC_MACROS
#endif

#undef DUK_USE_UNION_INITIALIZERS
#if defined(_MSC_VER) && (_MSC_VER >= 1800)
/* VS2013+ supports union initializers but there's a bug involving union-inside-struct:
 * https://connect.microsoft.com/VisualStudio/feedback/details/805981
 * The bug was fixed (at least) in VS2015 so check for VS2015 for now:
 * https://blogs.msdn.microsoft.com/vcblog/2015/07/01/c-compiler-front-end-fixes-in-vs2015/
 * Manually tested using VS2013, CL reports 18.00.31101, so enable for VS2013 too.
 */
#define DUK_USE_UNION_INITIALIZERS
#endif

#undef DUK_USE_FLEX_C99
#undef DUK_USE_FLEX_ZEROSIZE
#undef DUK_USE_FLEX_ONESIZE
#if defined(DUK_F_C99)
#define DUK_USE_FLEX_C99
#else
#define DUK_USE_FLEX_ZEROSIZE
#endif

#undef DUK_USE_GCC_PRAGMAS

#define DUK_USE_PACK_MSVC_PRAGMA

/* These have been tested from VS2008 onwards; may work in older VS versions
 * too but not enabled by default.
 */
#if defined(_MSC_VER) && (_MSC_VER >= 1500)
#define DUK_NOINLINE        __declspec(noinline)
#define DUK_INLINE          __inline
#define DUK_ALWAYS_INLINE   __forceinline
#endif

#if defined(_MSC_VER) && (_MSC_VER >= 1900)
#define DUK_SNPRINTF     snprintf
#define DUK_VSNPRINTF    vsnprintf
#else
/* (v)snprintf() is missing before MSVC 2015.  Note that _(v)snprintf() does
 * NOT NUL terminate on truncation, but Duktape code never assumes that.
 * http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010
 */
#define DUK_SNPRINTF     _snprintf
#define DUK_VSNPRINTF    _vsnprintf
#endif

/* Avoid warning when doing DUK_UNREF(some_function). */
#if defined(_MSC_VER) && (_MSC_VER < 1500)
#pragma warning(disable: 4100 4101 4550 4551)
#define DUK_UNREF(x)
#else
#define DUK_UNREF(x)  do { __pragma(warning(suppress:4100 4101 4550 4551)) (x); } while (0)
#endif

/* Older versions of MSVC don't support the LL/ULL suffix. */
#define DUK_U64_CONSTANT(x) x##ui64
#define DUK_I64_CONSTANT(x) x##i64