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Editorial Team
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Asked: 2026-05-31T02:55:25+00:00

So I’m trying to compile a project in Visual Studio 2010 and I seem

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So I’m trying to compile a project in Visual Studio 2010 and I seem to be running into problems compiling the code.

I have this chunk of code 

#ifdef WIN_X64  
extern "C" int gainAndFindMax (int cnt,int gain,PSHORT pInput,PSHORT pOutput);
#else
extern "C" int __fastcall gainAndFindMax (int cnt,int gain,PSHORT pInput,PSHORT     pOutput);
 #endif

which is a pair of assembly functions written by a coworker.
However, for some reason, it keeps compiling toward the #else statement as if it is not compiling in 64 bit.
I have all my project settings set to 64 bit and it should all be set up correctly however for some reason the
” extern “C” int gainAndFindMax (int cnt,int gain,PSHORT pInput,PSHORT pOutput);” is grayed out it doesn’t seem to compile.
Help would be much obliged

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1 Answer

  1. Editorial Team

    The macros you should look at are _WIN64 (or at least _M_X64), taken from here

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