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Examples of errors detected by the V732 diagnostic.


V732. Unary minus operator does not modify a bool type value.

Miranda IM

V732 Unary minus operator does not modify a bool type variable. Consider using the '!' operator. - ADDITIONAL IN CURRENT modern_docking.cpp 275


typedef struct tagCLUIDATA
{
  ....
  BOOL fDocked;
  ....
} CLUIDATA;

int Docking_ProcessWindowMessage(WPARAM wParam,LPARAM lParam)
{
  ....
  if ((msg->wParam && g_CluiData.fDocked<0) ||
      (!msg->wParam && g_CluiData.fDocked>0))
    g_CluiData.fDocked=-g_CluiData.fDocked;
  ....
}

Krita

V732 Unary minus operator does not modify a bool type value. Consider using the '!' operator. kis_equalizer_slider.cpp 75


QRect KisEqualizerSlider::Private::boundingRect() const
{
    QRect bounds = q->rect().adjusted(0, 0, -isRightmost, -1);
    return bounds;
}

Similar errors can be found in some other places:

  • V732 Unary minus operator does not modify a bool type value. Consider using the '!' operator. kis_equalizer_button.cpp 66
  • V732 Unary minus operator does not modify a bool type value. Consider using the '!' operator. kis_duplicateop.cpp 222

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Bugs Found

Checked Projects
314
Collected Errors
13 644

Qt

C++ 
int gx = gm.x.toInt();
int gy = gm.y.toInt();
int iw = gm.width.toInt();
int ih = gm.height.toInt();
if (iw <= 0 || iw <= 0)
  return 0;

UnrealEngine

C++ 
switch ( BlendMode )
{
case Opaque:
  BackgroundColor.A = 1.0f;
case Masked:
  BackgroundColor.A = 0.0f;
}

Xamarin

C# 
get {
  return Left == 0 &&
         Top == 0 &&
         Right == 0 &&
         Left == 0;
}

Chromium

C++ 
void Explode(bool is_local,
  Exploded* exploded) const
{
  ....
  ZeroMemory(
    exploded,
    sizeof(exploded));
  ....
}

Qt

C++ 
int gx = gm.x.toInt();
int gy = gm.y.toInt();
int iw = gm.width.toInt();
int ih = gm.height.toInt();
if (iw <= 0 || iw <= 0)
  return 0;

UnrealEngine

C++ 
switch ( BlendMode )
{
case Opaque:
  BackgroundColor.A = 1.0f;
case Masked:
  BackgroundColor.A = 0.0f;
}

Xamarin

C# 
get {
  return Left == 0 &&
         Top == 0 &&
         Right == 0 &&
         Left == 0;
}

Chromium

C++ 
void Explode(bool is_local,
  Exploded* exploded) const
{
  ....
  ZeroMemory(
    exploded,
    sizeof(exploded));
  ....
}
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