More clang warning cleanups.

git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@3209 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba

src/cheat/CheatManager.cxx

@@ -140,20 +140,10 @@ shared_ptr<Cheat> CheatManager::createCheat(const string& name, const string& co
   // Create new cheat based on string length
   switch(code.size())
   {
-    case 4:
+    case 4:  return make_shared<RamCheat>(myOSystem, name, code);
-      return make_shared<RamCheat>(myOSystem, name, code);
+    case 6:  return make_shared<CheetahCheat>(myOSystem, name, code);
-      break;
+    case 8:  return make_shared<BankRomCheat>(myOSystem, name, code);
-
+    default: return nullptr;
-    case 6:
-      return make_shared<CheetahCheat>(myOSystem, name, code);
-      break;
-
-    case 8:
-      return make_shared<BankRomCheat>(myOSystem, name, code);
-      break;
-
-    default:
-      return nullptr;
   }
 }
 

src/common/tv_filters/atari_ntsc_impl.hxx

@@ -264,7 +264,7 @@ static void init( init_t* impl, atari_ntsc_setup_t const* setup )
       do
       {
         float const* in = decoder;
-        int n = 3;
+        int n2 = 3;
         do
         {
           float i = *in++;
@@ -272,7 +272,7 @@ static void init( init_t* impl, atari_ntsc_setup_t const* setup )
           *out++ = i * c - q * s;
           *out++ = i * s + q * c;
         }
-        while ( --n );
+        while ( --n2 );
         if ( burst_count <= 1 )
           break;
         ROTATE_IQ( s, c, 0.866025f, -0.5f ); /* +120 degrees */
@@ -364,9 +364,9 @@ static void gen_kernel( init_t* impl, float y, float i, float q, atari_ntsc_rgb_
       ++pixel;
       for ( n = rgb_kernel_size; n; --n )
       {
-        float i = k[0]*ic0 + k[2]*ic2;
+        float fi = k[0]*ic0 + k[2]*ic2;
-        float q = k[1]*qc1 + k[3]*qc3;
+        float fq = k[1]*qc1 + k[3]*qc3;
-        float y = k[kernel_size+0]*yc0 + k[kernel_size+1]*yc1 +
+        float fy = k[kernel_size+0]*yc0 + k[kernel_size+1]*yc1 +
                   k[kernel_size+2]*yc2 + k[kernel_size+3]*yc3 + rgb_offset;
         if ( rescale_out <= 1 )
           k--;
@@ -375,7 +375,7 @@ static void gen_kernel( init_t* impl, float y, float i, float q, atari_ntsc_rgb_
         else
           k -= kernel_size * 2 * (rescale_out - 1) + 2;
         {
-          int r, g, b = YIQ_TO_RGB( y, i, q, to_rgb, int, r, g );
+          int r, g, b = YIQ_TO_RGB( fy, fi, fq, to_rgb, int, r, g );
           *out++ = PACK_RGB( r, g, b ) - rgb_bias;
         }
       }

src/debugger/gui/CartMCWidget.cxx

@@ -28,8 +28,6 @@ CartridgeMCWidget::CartridgeMCWidget(
   : CartDebugWidget(boss, lfont, nfont, x, y, w, h),
     myCart(cart)
 {
-#define ROM_BLOCKS
-
   uInt32 size = 128 * 1024;
 
   string info =

src/emucore/CartDPCPlus.cxx

@@ -144,7 +144,7 @@ inline void CartridgeDPCPlus::clockRandomNumberGenerator()
 inline void CartridgeDPCPlus::priorClockRandomNumberGenerator()
 {
   // Update random number generator (32-bit LFSR, reversed)
-  myRandomNumber = ((myRandomNumber & (1<<31)) ?
+  myRandomNumber = ((myRandomNumber & (1u<<31)) ?
     ((0x10adab1e^myRandomNumber) << 11) | ((0x10adab1e^myRandomNumber) >> 21) :
     (myRandomNumber << 11) | (myRandomNumber >> 21));
 }

src/emucore/CartWD.cxx

@@ -144,7 +144,7 @@ uInt8 CartridgeWD::peek(uInt16 address)
       return mySegment3[address & 0x03FF];
   }
 
-  return 0;  // We'll never reach this
+  return 0;  // Make the compiler happy; we'll never reach this
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

src/emucore/EventHandler.cxx

@@ -1140,7 +1140,6 @@ void EventHandler::setActionMappings(EventMode mode)
       break;
     default:
       return;
-      break;
   }
 
   ostringstream buf;
@@ -1582,7 +1581,6 @@ void EventHandler::setDefaultKeymap(Event::Type event, EventMode mode)
 
     default:
       return;
-      break;
   }
   setActionMappings(mode);
 }
@@ -1744,16 +1742,13 @@ Event::Type EventHandler::eventAtIndex(int idx, EventMode mode) const
         return Event::NoType;
       else
         return ourEmulActionList[idx].event;
-      break;
     case kMenuMode:
       if(idx < 0 || idx >= kMenuActionListSize)
         return Event::NoType;
       else
         return ourMenuActionList[idx].event;
-      break;
     default:
       return Event::NoType;
-      break;
   }
 }  
 
@@ -1767,16 +1762,13 @@ string EventHandler::actionAtIndex(int idx, EventMode mode) const
         return EmptyString;
       else
         return ourEmulActionList[idx].action;
-      break;
     case kMenuMode:
       if(idx < 0 || idx >= kMenuActionListSize)
         return EmptyString;
       else
         return ourMenuActionList[idx].action;
-      break;
     default:
       return EmptyString;
-      break;
   }
 }
 
@@ -1790,16 +1782,13 @@ string EventHandler::keyAtIndex(int idx, EventMode mode) const
         return EmptyString;
       else
         return ourEmulActionList[idx].key;
-      break;
     case kMenuMode:
       if(idx < 0 || idx >= kMenuActionListSize)
         return EmptyString;
       else
         return ourMenuActionList[idx].key;
-      break;
     default:
       return EmptyString;
-      break;
   }
 }
 

src/emucore/Props.cxx

@@ -61,7 +61,7 @@ void Properties::set(PropertyType key, const string& value)
       case Display_Phosphor:
       {
         transform(myProperties[key].begin(), myProperties[key].end(),
-                  myProperties[key].begin(), (int(*)(int)) toupper);
+                  myProperties[key].begin(), ::toupper);
         break;
       }
 

src/emucore/TIA.cxx

@@ -1299,7 +1299,7 @@ inline uInt8 TIA::dumpedInputPort(int resistance)
     else
       return 0x00;
   }
-  return 0x00;
+  return 0x00;  // Make the compiler happy; we'll never reach this
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

src/gui/CheckListWidget.cxx

@@ -166,11 +166,9 @@ bool CheckListWidget::handleEvent(Event::Type e)
       // Simulate a mouse button click
       _checkList[ListWidget::getSelected()]->handleMouseUp(0, 0, 1, 0);
       return true;
-      break;
 
     default:
       return ListWidget::handleEvent(e);
-      break;
   }
 }
 

src/gui/Dialog.cxx

@@ -587,7 +587,6 @@ bool Dialog::handleNavEvent(Event::Type e)
 
     default:
       return false;
-      break;
   }
   return false;
 }

src/gui/PopUpWidget.cxx

@@ -25,8 +25,6 @@
 
 #include "PopUpWidget.hxx"
 
-#define UP_DOWN_BOX_HEIGHT	10
-
 // Little up/down arrow
 static uInt32 up_down_arrows[8] = {
   0x00000000,

src/gui/Widget.cxx

@@ -670,7 +670,6 @@ bool SliderWidget::handleEvent(Event::Type e)
 
     default:
       return false;
-      break;
   }
   return true;
 }

src/yacc/YaccParser.cxx

@@ -332,8 +332,7 @@ int yylex() {
             return o;
           }
         }
-
+        // break;  Never executed
-        break;
 
       case ST_DEFAULT:
       default: