cpp binding: make operator == and != const. thanks to Riot for this patch. ticket #230

git-svn-id: https://subversion.assembla.com/svn/portaudio/portaudio/trunk@1943 0f58301d-fd10-0410-b4af-bbb618454e57

bindings/cpp/include/portaudiocpp/Device.hxx

@@ -60,8 +60,8 @@ namespace portaudio
 		bool isHostApiDefaultInputDevice() const; // extended
 		bool isHostApiDefaultOutputDevice() const; // extended
 
-		bool operator==(const Device &rhs);
-		bool operator!=(const Device &rhs);
+		bool operator==(const Device &rhs) const;
+		bool operator!=(const Device &rhs) const;
 
 		// host api reference
 		HostApi &hostApi();

bindings/cpp/include/portaudiocpp/SystemDeviceIterator.hxx

@@ -48,8 +48,8 @@ namespace portaudio
 		DeviceIterator &operator--();
 		DeviceIterator operator--(int);
 
-		bool operator==(const DeviceIterator &rhs);
-		bool operator!=(const DeviceIterator &rhs);
+		bool operator==(const DeviceIterator &rhs) const;
+		bool operator!=(const DeviceIterator &rhs) const;
 
 	private:
 		friend class System;

bindings/cpp/include/portaudiocpp/SystemHostApiIterator.hxx

@@ -45,8 +45,8 @@ namespace portaudio
 		HostApiIterator &operator--();
 		HostApiIterator operator--(int);
 
-		bool operator==(const HostApiIterator &rhs);
-		bool operator!=(const HostApiIterator &rhs);
+		bool operator==(const HostApiIterator &rhs) const;
+		bool operator!=(const HostApiIterator &rhs) const;
 
 	private:
 		friend class System;

bindings/cpp/source/portaudiocpp/Device.cxx

@@ -131,12 +131,12 @@ namespace portaudio
 
 		// -------------------------------------------------------------------------------
 
-		bool Device::operator==(const Device &rhs)
+		bool Device::operator==(const Device &rhs) const
 		{
 			return (index_ == rhs.index_);
 		}
 
-		bool Device::operator!=(const Device &rhs)
+		bool Device::operator!=(const Device &rhs) const
 		{
 			return !(*this == rhs);
 		}

bindings/cpp/source/portaudiocpp/SystemDeviceIterator.cxx

@@ -44,12 +44,12 @@ namespace portaudio
 
 	// -----------------------------------------------------------------------------------
 
-	bool System::DeviceIterator::operator==(const System::DeviceIterator &rhs)
+	bool System::DeviceIterator::operator==(const System::DeviceIterator &rhs) const
 	{
 		return (ptr_ == rhs.ptr_);
 	}
 
-	bool System::DeviceIterator::operator!=(const System::DeviceIterator &rhs)
+	bool System::DeviceIterator::operator!=(const System::DeviceIterator &rhs) const
 	{
 		return !(*this == rhs);
 	}

bindings/cpp/source/portaudiocpp/SystemHostApiIterator.cxx

@@ -44,12 +44,12 @@ namespace portaudio
 
 	// -----------------------------------------------------------------------------------
 
-	bool System::HostApiIterator::operator==(const System::HostApiIterator &rhs)
+	bool System::HostApiIterator::operator==(const System::HostApiIterator &rhs) const
 	{
 		return (ptr_ == rhs.ptr_);
 	}
 
-	bool System::HostApiIterator::operator!=(const System::HostApiIterator &rhs)
+	bool System::HostApiIterator::operator!=(const System::HostApiIterator &rhs) const
 	{
 		return !(*this == rhs);
 	}