Why not use the syntax:
#ifdef __cplusplus
extern "C" {
#endif
<declarations all go here...>
#ifdef __cplusplus
}
#endif
This would avoid duplicating the declarations... Not a big deal when there's a
single function, but if there are more functions it prevents bugs from being
introduced due to some declarations being forgotten when changes are made.
-Fab
Hefty, Sean wrote on Thu, 2 Sep 2010 at 12:17:30
> Winverbs defines WvGetObject that users must invoke to obtain the
> winverb provider interface. WvGetObject is defined in the header
> files as dllexport, but callers require dllimport. The winverbs
> sources file already defines EXPORT_WV_SYMBOLS that is intended to
> distinguish if we are really trying to export or import WvGetObject.
> Update winverbs.h to support dllimport for clients including
> winverbs directly.
>
> Signed-off-by: Sean Hefty <[email protected]>
> ---
> Several other headers have a similar issue. Just fixing winverbs
> for now.
>
> Index: winverbs.h
> =================================================================== ---
> winverbs.h (revision 2870) +++ winverbs.h (working copy) @@ -1542,10
> +1542,16 @@
> ) PURE;
> };
> +#ifdef EXPORT_WV_SYMBOLS
> +#define WV_EXPORT __declspec(dllexport)
> +#else
> +#define WV_EXPORT __declspec(dllimport)
> +#endif
> +
> #ifdef __cplusplus
> -extern "C" __declspec(dllexport) HRESULT WvGetObject(REFIID riid,
> LPVOID FAR* ppvObj);
> +extern "C" WV_EXPORT HRESULT WvGetObject(REFIID riid, LPVOID FAR*
> ppvObj);
> #else
> -__declspec(dllexport) HRESULT WvGetObject(REFIID riid, LPVOID FAR*
> ppvObj); +WV_EXPORT HRESULT WvGetObject(REFIID riid, LPVOID FAR* ppvObj);
> #endif
>
> #endif // _WINVERBS_H_
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