Our website uses cookies to enhance your browsing experience.
Accept
to the top
close form

Fill out the form in 2 simple steps below:

Your contact information:

Step 1
Congratulations! This is your promo code!

Desired license type:

Step 2
Team license
Enterprise license
** By clicking this button you agree to our Privacy Policy statement
close form
Request our prices
New License
License Renewal
--Select currency--
USD
EUR
* By clicking this button you agree to our Privacy Policy statement

close form
Free PVS‑Studio license for Microsoft MVP specialists
* By clicking this button you agree to our Privacy Policy statement

close form
To get the licence for your open-source project, please fill out this form
* By clicking this button you agree to our Privacy Policy statement

close form
I am interested to try it on the platforms:
* By clicking this button you agree to our Privacy Policy statement

close form
check circle
Message submitted.

Your message has been sent. We will email you at


If you haven't received our response, please do the following:
check your Spam/Junk folder and click the "Not Spam" button for our message.
This way, you won't miss messages from our team in the future.

>
>
>
Examples of errors detected by the V543…

Examples of errors detected by the V543 diagnostic

V543. It is suspicious that value 'X' is assigned to the variable 'Y' of HRESULT type.


WinMerge

V543 It is odd that value '-1' is assigned to the variable 'h' of HRESULT type. Merge plugins.cpp 992


static HRESULT safeInvokeA(LPDISPATCH pi, VARIANT *ret,
                           DISPID id, LPCCH op, ...)
{
  HRESULT h;
  ....
  // set h to FAILED
  h = -1;
  ....
}

Similar errors can be found in some other places:

  • V543 It is odd that value '-1' is assigned to the variable 'h' of HRESULT type. Merge plugins.cpp 1033

Oracle VM Virtual Box

V543 It is odd that value 'true' is assigned to the variable 'mRemoveSavedState' of HRESULT type. machineimpl.cpp 12247


class ATL_NO_VTABLE SessionMachine : public Machine
{
  ....
  HRESULT mRemoveSavedState;
  ....
}

HRESULT SessionMachine::init(Machine *aMachine)
{
  ....
  /* default is to delete saved state on
   * Saved -> PoweredOff transition */
  mRemoveSavedState = true;
  ....
}

Unreal Engine 4

V543 It is odd that value '-1' is assigned to the variable 'Result' of HRESULT type. unrealaudiodevicewasapi.cpp 568


#define S_OK     ((HRESULT)0L)
#define S_FALSE  ((HRESULT)1L)

bool FUnrealAudioWasapi::OpenDevice(uint32 DeviceIndex,
                                    EStreamType::Type StreamType)
{
  check(WasapiInfo.DeviceEnumerator);

  IMMDevice* Device = nullptr;
  IMMDeviceCollection* DeviceList = nullptr;
  WAVEFORMATEX* DeviceFormat = nullptr;
  FDeviceInfo DeviceInfo;
  HRESULT Result = S_OK;                                   // <=
  ....
  if (!GetDeviceInfo(DataFlow, DeviceIndex, DeviceInfo))
  {
    Result = -1;                                           // <=
    goto Cleanup;
  }
  ....
}

Mozilla Thunderbird

V543 It is odd that value '-1' is assigned to the variable 'm_lastError' of HRESULT type. MapiApi.cpp 1050


class CMapiApi {
 ....
 private:
  static HRESULT m_lastError;
  ....
};

CMsgStore *CMapiApi::FindMessageStore(ULONG cbEid, LPENTRYID lpEid) {
  if (!m_lpSession) {
    MAPI_TRACE0("FindMessageStore called before session is open\n");
        m_lastError = -1;
    return NULL;
  }
  ....
}

Similar errors can be found in some other places:

  • V543 It is odd that value '-1' is assigned to the variable 'm_lastError' of HRESULT type. MapiApi.cpp 817
  • V543 It is odd that value '-1' is assigned to the variable 'm_lastError' of HRESULT type. MapiApi.cpp 1749