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Examples of errors detected by the V676…

Examples of errors detected by the V676 diagnostic

V676. It is incorrect to compare the variable of BOOL type with TRUE.


VirtualDub

V676 It is incorrect to compare the variable of BOOL type with TRUE. Correct expression is: 'ChooseColorA(& cc) != FALSE'. VirtualDub gui.cpp 665


bool guiChooseColor(HWND hwnd, COLORREF& rgbOld) {
  ....
  if (ChooseColor(&cc)==TRUE) {;
    rgbOld = cc.rgbResult;
    return true;
  }
  ....
}

If the user clicks the OK button of the dialog box, the return value is **nonzero**.

Similar errors can be found in some other places:

  • V676 It is incorrect to compare the variable of BOOL type with TRUE. Correct expression is: 'ChooseColorA(& cc) != FALSE'. VDFilters vfrotate2.cpp 54

Firebird

V676 It is incorrect to compare the variable of BOOL type with TRUE. Correct expression is: 'success == FALSE'. iscguard.cpp 667


THREAD_ENTRY_DECLARE start_and_watch_server(THREAD_ENTRY_PARAM)
{
  ....
  success = CreateProcess(....);
  if (success != TRUE)
    error = GetLastError();
  ....
}

#info If the function succeeds, the return value is nonzero.

Similar errors can be found in some other places:

  • V676 It is incorrect to compare the variable of BOOL type with TRUE. Correct expression is: 'success == FALSE'. iscguard.cpp 691
  • V676 It is incorrect to compare the variable of BOOL type with TRUE. Correct expression is: '(* m_funct)(lpCS) != FALSE'. locks.h 64
  • V676 It is incorrect to compare the variable of BOOL type with TRUE. iscguard.cpp 614
  • And 2 additional diagnostic messages.

CryEngine 3 SDK

V676 It is incorrect to compare the variable of BOOL type with TRUE. statsagentpipe.cpp 163


bool CStatsAgentPipe::Send()
{
  ....
  ok = ::WriteFile(s_pipe, pBuffer.c_str(), nBytes, &tx, 0)
       == TRUE;
  ....
}

Similar errors can be found in some other places:

  • V676 It is incorrect to compare the variable of BOOL type with TRUE. statsagentpipe.cpp 108

Apple II emulator

V676 It is incorrect to compare the variable of BOOL type with TRUE. Correct expression is: 'out != FALSE'. frame.cpp 381


typedef int BOOL;

static void Draw3dRect (...., BOOL out)
{
  ....
  SelectObject(dc,(out == 1) ? btnhighlightpen : btnshadowpen);
  ....
}

Amazon FreeRTOS

V676 [CWE-253] It is incorrect to compare the variable of BOOL type with TRUE. Correct expression is: 'FALSE != CryptGenRandom(hProv, len, output)'. aws_entropy_hardware_poll.c 51


int mbedtls_hardware_poll(void* data,
                          unsigned char* output,
                          size_t len,
                          size_t* olen)
{
  int lStatus = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
  HCRYPTPROV hProv = 0;

  /* Unferenced parameter. */
  (void)data;

  /*
   * This is port-specific for the Windows simulator,
   * so just use Crypto API.
   */

  if (TRUE == CryptAcquireContextA(
                &hProv, NULL, NULL,
                PROV_RSA_FULL,
                CRYPT_VERIFYCONTEXT))
  {
    if (TRUE == CryptGenRandom(hProv, len, output))
    {
      lStatus = 0;
      *olen = len;
    }

    CryptReleaseContext(hProv, 0);
  }

  return lStatus;
}

Similar errors can be found in some other places:

  • V676 [CWE-253] It is incorrect to compare the variable of BOOL type with TRUE. aws_entropy_hardware_poll.c 48

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