_com_util Namespace Reference

Functions
void	CheckError (HRESULT hr)
static HRESULT	UIntAdd (UINT uAugend, UINT uAddend, UINT *puResult)
static HRESULT	UIntMult (UINT uMultiplicand, UINT uMultiplier, UINT *puResult)
BSTR __stdcall	ConvertStringToBSTR (const char *pSrc)
char *__stdcall	ConvertBSTRToString (BSTR pSrc)

Function Documentation

void _com_util::CheckError ( HRESULT  hr )

inline

    {
        if (FAILED(hr)) {
            _com_issue_error(hr);
        }
    }

char* __stdcall _com_util::ConvertBSTRToString

(

BSTR

pSrc

)

BSTR __stdcall _com_util::ConvertStringToBSTR

(

const char *

pSrc

)

static HRESULT _com_util::UIntAdd ( UINT  uAugend, UINT  uAddend, UINT *  puResult  )

static

    {
        if((uAugend + uAddend) < uAddend)
        {
            return INTSAFE_E_ARITHMETIC_OVERFLOW;
        }
        *puResult = uAugend + uAddend;
        return S_OK;
    }

static HRESULT _com_util::UIntMult ( UINT  uMultiplicand, UINT  uMultiplier, UINT *  puResult  )

static

    {
        ULONGLONG ull64Result = UInt32x32To64(uMultiplicand, uMultiplier);
        if(ull64Result <= INTSAFE_UINT_MAX)
        {
            *puResult = (UINT)ull64Result;
            return S_OK;
        }
        return INTSAFE_E_ARITHMETIC_OVERFLOW;
    }