Examples of errors detected by the V681 diagnostic

V681. The language standard does not define order in which 'Foo' functions are called during evaluation of arguments.

Wine Is Not an Emulator

V681 The language standard does not define an order in which the 'tlb_read_byte' functions will be called during evaluation of arguments. tlb.c 650

static BOOL dump_msft_custdata(seg_t *seg)
{
  ....
  printf("\\%2.2x \\%2.2x\n", tlb_read_byte(), tlb_read_byte());
  ....
}

Android

V681 CWE-758 The language standard does not define an order in which the 'readSigned' functions will be called during evaluation of arguments. ComposerClient.cpp 836

bool ComposerClient::CommandReader::parseSetLayerCursorPosition(uint16_t length)
{
  if (length != CommandWriterBase::kSetLayerCursorPositionLength) {
    return false;
  }

  auto err =
    mHal.setLayerCursorPosition(mDisplay, mLayer,
                                readSigned(), readSigned());
  if (err != Error::NONE) {
    mWriter.setError(getCommandLoc(), err);
  }

  return true;
}