it's 32-bit windows 9x code, but the target is 64-bit, so I have to disable the
9x code.
I found a workaround on the internet (great place to look for solutions):
#if !defined(_WIN64)
...//win9x code
#endif
________________________________
From: Ozkan Sezer <[email protected]>
To: Jim Michaels <[email protected]>
Cc: mingw64 <[email protected]>
Sent: Fri, February 19, 2010 1:28:02 AM
Subject: Re: [Mingw-w64-public] x64 can't cast ptr to DWORD
On Fri, Feb 19, 2010 at 11:25 AM, Jim Michaels <[email protected]> wrote:
> after much difficulty trying to get subscribed to the list, here is my
> question.
>
> #define CAST(x) reinterpret_cast<DWORD>( x )
> or
> #define CAST(x) (DWORD)( x )
> ...
> // All msdos data structures must be packed on a 1 byte boundary
> #pragma pack (1)
> struct {
> DWORD StartingSector ;
> WORD NumberOfSectors ;
> DWORD pBuffer;
> } ControlBlock;
> #pragma pack ()
> ...
> ControlBlock.pBuffer = CAST(buffer) ;
>
> "dgeomlib.cpp:178: error: cast from 'unsigned char*' to 'DWORD' loses
> precision"
>
> this only occurs on 64-bit target compiler.
> how can I circumvent?
Use DWORD_PTR instead.
> or, how can I use ifdefs to disable this windows 9x code only for x64 target
> (obviously the x64-output compiler must have some sort of #define?)?
>
#ifdef _WIN64 ... #endif should do?
>
> Jim Michaels
> [email protected](main)
> JesusnJim.com (my site)
--
Ozkan
I don't think it's going to fit in 32 bits.
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