InputCommon: Use nested namespace specifiers where applicable

Source/Core/InputCommon/ControllerInterface/DInput/DInput.cpp

@@ -14,9 +14,7 @@
 #pragma comment(lib, "Dinput8.lib")
 #pragma comment(lib, "dxguid.lib")
 
-namespace ciface
-{
-namespace DInput
+namespace ciface::DInput
 {
 BOOL CALLBACK DIEnumDeviceObjectsCallback(LPCDIDEVICEOBJECTINSTANCE lpddoi, LPVOID pvRef)
 {
@@ -69,5 +67,4 @@ void PopulateDevices(HWND hwnd)
 
   idi8->Release();
 }
-}  // namespace DInput
-}  // namespace ciface
+}  // namespace ciface::DInput

Source/Core/InputCommon/ControllerInterface/DInput/DInput.h

@@ -12,9 +12,7 @@
 
 #include "InputCommon/ControllerInterface/DInput/DInput8.h"
 
-namespace ciface
-{
-namespace DInput
+namespace ciface::DInput
 {
 // BOOL CALLBACK DIEnumEffectsCallback(LPCDIEFFECTINFO pdei, LPVOID pvRef);
 BOOL CALLBACK DIEnumDeviceObjectsCallback(LPCDIDEVICEOBJECTINSTANCE lpddoi, LPVOID pvRef);
@@ -22,5 +20,4 @@ BOOL CALLBACK DIEnumDevicesCallback(LPCDIDEVICEINSTANCE lpddi, LPVOID pvRef);
 std::string GetDeviceName(const LPDIRECTINPUTDEVICE8 device);
 
 void PopulateDevices(HWND hwnd);
-}  // namespace DInput
-}  // namespace ciface
+}  // namespace ciface::DInput

Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.cpp

@@ -14,9 +14,7 @@
 #include "InputCommon/ControllerInterface/DInput/DInputJoystick.h"
 #include "InputCommon/ControllerInterface/DInput/XInputFilter.h"
 
-namespace ciface
-{
-namespace DInput
+namespace ciface::DInput
 {
 constexpr DWORD DATA_BUFFER_SIZE = 32;
 
@@ -315,5 +313,4 @@ ControlState Joystick::Hat::GetState() const
 
   return (abs((int)(m_hat / 4500 - m_direction * 2 + 8) % 8 - 4) > 2);
 }
-}  // namespace DInput
-}  // namespace ciface
+}  // namespace ciface::DInput

Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.h

@@ -7,9 +7,7 @@
 #include "InputCommon/ControllerInterface/Device.h"
 #include "InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h"
 
-namespace ciface
-{
-namespace DInput
+namespace ciface::DInput
 {
 void InitJoystick(IDirectInput8* const idi8, HWND hwnd);
 
@@ -77,5 +75,4 @@ private:
 
   bool m_buffered;
 };
-}  // namespace DInput
-}  // namespace ciface
+}  // namespace ciface::DInput

Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.cpp

@@ -17,9 +17,7 @@
 // otherwise it is just some crazy value
 #define DROP_INPUT_TIME 250
 
-namespace ciface
-{
-namespace DInput
+namespace ciface::DInput
 {
 static const struct
 {
@@ -227,5 +225,4 @@ ControlState KeyboardMouse::Cursor::GetState() const
 {
   return m_axis / (m_positive ? 1.0 : -1.0);
 }
-}  // namespace DInput
-}  // namespace ciface
+}  // namespace ciface::DInput

Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h

@@ -9,9 +9,7 @@
 #include "InputCommon/ControllerInterface/DInput/DInput8.h"
 #include "InputCommon/ControllerInterface/Device.h"
 
-namespace ciface
-{
-namespace DInput
+namespace ciface::DInput
 {
 void InitKeyboardMouse(IDirectInput8* const idi8, HWND hwnd);
 
@@ -103,5 +101,4 @@ private:
   DWORD m_last_update;
   State m_state_in;
 };
-}  // namespace DInput
-}  // namespace ciface
+}  // namespace ciface::DInput

Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.cpp

@@ -9,9 +9,7 @@
 #include <Windows.h>
 #include <SetupAPI.h>
 
-namespace ciface
-{
-namespace DInput
+namespace ciface::DInput
 {
 // Code for enumerating hardware devices that use the XINPUT device driver.
 // The MSDN recommended code suffers from massive performance problems when using language packs,
@@ -76,5 +74,4 @@ std::unordered_set<DWORD> GetXInputGUIDS()
   SetupDiDestroyDeviceInfoList(setup_enum);
   return guids;
 }
-}  // namespace DInput
-}  // namespace ciface
+}  // namespace ciface::DInput

Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.h

@@ -7,10 +7,7 @@
 #include <Windows.h>
 #include <unordered_set>
 
-namespace ciface
-{
-namespace DInput
+namespace ciface::DInput
 {
 std::unordered_set<DWORD> GetXInputGUIDS();
-}
-}  // namespace ciface
+}  // namespace ciface::DInput