[x265] [PATCH] winxp: fix build error on WinXP and VS2008

[Steve Borho]

On 01/30, Min Chen wrote:
> # HG changeset patch
> # User Min Chen <chenm003 at 163.com>
> # Date 1422597154 -28800
> # Node ID 9f959e74723a69f1327c6a622c2ab265babc1f36
> # Parent  5e5dc3763f6386da9722903033a2b9dd263a5226
> winxp: fix build error on WinXP and VS2008
> ---
>  source/common/threading.h |   14 ++++++++++++++
>  1 files changed, 14 insertions(+), 0 deletions(-)
> 
> diff -r 5e5dc3763f63 -r 9f959e74723a source/common/threading.h
> --- a/source/common/threading.h	Thu Jan 29 10:37:54 2015 -0600
> +++ b/source/common/threading.h	Fri Jan 30 13:52:34 2015 +0800
> @@ -60,6 +60,20 @@
>  
>  #include <intrin.h>
>  
> +#if _WIN32_WINNT <= _WIN32_WINNT_WINXP
> +__forceinline
> +LONG
> +InterlockedAdd(
> +    __inout LONG volatile *Addend,
> +    __in LONG Value
> +    )
> +
> +{
> +    return InterlockedExchangeAdd(Addend, Value) + Value;
> +}
> +#endif
> +
> +

this belongs in winxp.h

>  #define CLZ(id, x)                          _BitScanReverse(&id, x)
>  #define CTZ(id, x)                          _BitScanForward(&id, x)
>  #define ATOMIC_INC(ptr)                     InterlockedIncrement((volatile LONG*)ptr)
> 
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-- 
Steve Borho