Cranked-up the warning level in the introjucer Xcode build, and fixed a few minor warnings.

extras/Introjucer/Builds/MacOSX/The Introjucer.xcodeproj/project.pbxproj

@@ -2002,7 +2002,7 @@
 				INFOPLIST_FILE = Info.plist;
 				INSTALL_PATH = "$(HOME)/Applications";
 				MACOSX_DEPLOYMENT_TARGET_ppc = 10.4;
-				OTHER_CPLUSPLUSFLAGS = "-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter";
+				OTHER_CPLUSPLUSFLAGS = "-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter -Wconversion -Wsign-compare -Wint-conversion -Woverloaded-virtual -Wreorder -Wconstant-conversion -Wsign-conversion";
 				SDKROOT_ppc = macosx10.5; }; name = Debug; };
 		B159CF4275B8A90122629FF4 = {isa = XCBuildConfiguration; buildSettings = {
 				ARCHS = "$(NATIVE_ARCH_ACTUAL)";
@@ -2026,7 +2026,7 @@
 				INSTALL_PATH = "$(HOME)/Applications";
 				MACOSX_DEPLOYMENT_TARGET = 10.5;
 				MACOSX_DEPLOYMENT_TARGET_ppc = 10.4;
-				OTHER_CPLUSPLUSFLAGS = "-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter";
+				OTHER_CPLUSPLUSFLAGS = "-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter -Wconversion -Wsign-compare -Wint-conversion -Woverloaded-virtual -Wreorder -Wconstant-conversion -Wsign-conversion";
 				SDKROOT_ppc = macosx10.5; }; name = Release; };
 		C42924A24AB55E6A940423EA = {isa = XCBuildConfiguration; buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;

extras/Introjucer/Introjucer.jucer

@@ -15,7 +15,7 @@
   <EXPORTFORMATS>
     <XCODE_MAC targetFolder="Builds/MacOSX" vstFolder="~/SDKs/vstsdk2.4" rtasFolder="~/SDKs/PT_80_SDK"
                documentExtensions=".jucer" objCExtraSuffix="zNNCr" bigIcon="rVgowdy"
-               extraCompilerFlags="-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter">
+               extraCompilerFlags="-Wall -Wshadow -Wno-missing-field-initializers -Wshadow -Wshorten-64-to-32 -Wstrict-aliasing -Wuninitialized -Wunused-parameter -Wconversion -Wsign-compare -Wint-conversion -Woverloaded-virtual -Wreorder -Wconstant-conversion -Wsign-conversion">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" isDebug="1" optimisation="1" targetName="Introjucer"
                        osxSDK="default" osxCompatibility="default" osxArchitecture="Native"/>

extras/Introjucer/Source/ComponentEditor/ui/jucer_ResourceEditorPanel.cpp

@@ -129,7 +129,7 @@ void ResourceEditorPanel::paintCell (Graphics& g, int rowNumber, int columnId, i
         else if (columnId == 2)
             text = r->originalFilename;
         else if (columnId == 3)
-            text = File::descriptionOfSizeInBytes (r->data.getSize());
+            text = File::descriptionOfSizeInBytes ((int64) r->data.getSize());
 
         g.setFont (13.0f);
         g.drawText (text, 4, 0, width - 6, height, Justification::centredLeft, true);
@@ -169,7 +169,7 @@ int ResourceEditorPanel::getColumnAutoSizeWidth (int columnId)
         else if (columnId == 2)
             text = r->originalFilename;
         else if (columnId == 3)
-            text = File::descriptionOfSizeInBytes (r->data.getSize());
+            text = File::descriptionOfSizeInBytes ((int64) r->data.getSize());
 
         widest = jmax (widest, f.getStringWidth (text));
     }

modules/juce_cryptography/hashing/juce_Whirlpool.cpp

@@ -64,7 +64,7 @@ private:
         int sourceGap = (8 - (numBits & 7)) & 7;  // space on source[sourcePos]
         int bufferRem = bufferBits & 7;           // occupied bits on buffer[bufferPos]
 
-        uint64 value = numBits, carry = 0;
+        uint64 value = (uint64) numBits, carry = 0;
 
         for (int i = 32; --i >= 0 && (carry != 0 || value != 0);)
         {
@@ -137,14 +137,14 @@ private:
         if (bufferPos > 32)
         {
             if (bufferPos < 64)
-                zeromem (buffer + bufferPos, 64 - bufferPos);
+                zeromem (buffer + bufferPos, (size_t) (64 - bufferPos));
 
             processNextBuffer();
             bufferPos = 0;
         }
 
         if (bufferPos < 32)
-            zeromem (buffer + bufferPos, 32 - bufferPos);
+            zeromem (buffer + bufferPos, (size_t) (32 - bufferPos));
 
         bufferPos = 32;
         memcpy (buffer + 32, bitLength, 32);  // append bit length of hashed data

modules/juce_graphics/colour/juce_ColourGradient.cpp

@@ -32,12 +32,12 @@ ColourGradient::ColourGradient() noexcept
    #endif
 }
 
-ColourGradient::ColourGradient (Colour colour1, const float x1_, const float y1_,
-                                Colour colour2, const float x2_, const float y2_,
-                                const bool isRadial_)
-    : point1 (x1_, y1_),
-      point2 (x2_, y2_),
-      isRadial (isRadial_)
+ColourGradient::ColourGradient (Colour colour1, const float x1, const float y1,
+                                Colour colour2, const float x2, const float y2,
+                                const bool radial)
+    : point1 (x1, y1),
+      point2 (x2, y2),
+      isRadial (radial)
 {
     colours.add (ColourPoint (0.0, colour1));
     colours.add (ColourPoint (1.0, colour2));

modules/juce_graphics/native/juce_mac_CoreGraphicsContext.mm

@@ -707,7 +707,7 @@ void CoreGraphicsContext::SavedState::setFill (const FillType& newFill)
 static CGGradientRef createGradient (const ColourGradient& g, CGColorSpaceRef colourSpace)
 {
     const int numColours = g.getNumColours();
-    CGFloat* const data = (CGFloat*) alloca (numColours * 5 * sizeof (CGFloat));
+    CGFloat* const data = (CGFloat*) alloca ((size_t) numColours * 5 * sizeof (CGFloat));
     CGFloat* const locations = data;
     CGFloat* const components = data + numColours;
     CGFloat* comps = components;
@@ -715,14 +715,14 @@ static CGGradientRef createGradient (const ColourGradient& g, CGColorSpaceRef co
     for (int i = 0; i < numColours; ++i)
     {
         const Colour colour (g.getColour (i));
-        *comps++ = colour.getFloatRed();
-        *comps++ = colour.getFloatGreen();
-        *comps++ = colour.getFloatBlue();
-        *comps++ = colour.getFloatAlpha();
-        locations[i] = g.getColourPosition (i);
+        *comps++ = (CGFloat) colour.getFloatRed();
+        *comps++ = (CGFloat) colour.getFloatGreen();
+        *comps++ = (CGFloat) colour.getFloatBlue();
+        *comps++ = (CGFloat) colour.getFloatAlpha();
+        locations[i] = (CGFloat) g.getColourPosition (i);
     }
 
-    return CGGradientCreateWithColorComponents (colourSpace, components, locations, numColours);
+    return CGGradientCreateWithColorComponents (colourSpace, components, locations, (size_t) numColours);
 }
 
 void CoreGraphicsContext::drawGradient()