32-bit / 64-bit Conversion

Question

I want a single source code for 32-bit and 64-bit version

I have a function like this...

int CUtils::RoundToInt(double dValue)
{
#ifdef _DEBUG
 assert(dValue > static_cast<double>(INT_MIN / 2) - 1.0);
    assert(dValue < static_cast<double>(INT_MAX / 2) + 1.0);
#endif

 const float round_to_nearest = 0.5f;
 int i;
 __asm
 {
  fld dValue
        fadd st, st (0)
        fadd round_to_nearest
        fistp i
        sar i, 1
 }
 return (i);
}

Now using conditional compile flags (#ifdef <flag>, #endif) How can I put a condition, that if it uses 32-bit PC, then it should use RoundToInt(double dValue) and in case of 64-bit it should use [B]RoundToInt64[/B](double dValue) function?

---

Adeel

Answer 1

IsWow64Process ?
please refer: https://msdn.microsoft.com/en-us/library/windows/desktop/ms684139%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396

---

Visual C++ enthusiast, like network programming and driver development. At present is being engaged in the WinCE/Windows Mobile platform embedded development.

Answer 2

I want a single source code for 32-bit and 64-bit version Now using conditional compile flags (#ifdef <flag>, #endif)

For the MS C++ compiler, use the _WIN64 macro definition:
https://msdn.microsoft.com/en-us/library/b0084kay.aspx

Dave

Answer 3

Hi, maverick786us,

    Is your problem solved?

Best regards,

chchlll