InputCommon: Use nested namespace specifiers where applicable

34 files changed, 69 insertions, 174 deletions

diff --git a/Source/Core/InputCommon/ControllerInterface/Android/Android.cpp b/Source/Core/InputCommon/ControllerInterface/Android/Android.cpp
index 9ab4cbf0f8..910b7553c9 100644
--- a/Source/Core/InputCommon/ControllerInterface/Android/Android.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/Android/Android.cpp
@@ -8,9 +8,7 @@
 #include <thread>
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 
-namespace ciface
-{
-namespace Android
+namespace ciface::Android
 {
 void PopulateDevices()
 {
@@ -240,5 +238,4 @@ void Touchscreen::Motor::Rumble(int padID, double state)
   JNIEnv* env = IDCache::GetEnvForThread();
   env->CallStaticVoidMethod(IDCache::GetNativeLibraryClass(), IDCache::GetDoRumble(), padID, state);
 }
-}  // namespace Android
-}  // namespace ciface
+}  // namespace ciface::Android
diff --git a/Source/Core/InputCommon/ControllerInterface/Android/Android.h b/Source/Core/InputCommon/ControllerInterface/Android/Android.h
index b917222864..82a1a47954 100644
--- a/Source/Core/InputCommon/ControllerInterface/Android/Android.h
+++ b/Source/Core/InputCommon/ControllerInterface/Android/Android.h
@@ -7,11 +7,10 @@
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 #include "jni/ButtonManager.h"
 
-namespace ciface
-{
-namespace Android
+namespace ciface::Android
 {
 void PopulateDevices();
+
 class Touchscreen : public Core::Device
 {
 private:
@@ -65,5 +64,4 @@ public:
 private:
   const int _padID;
 };
-}  // namespace Android
-}  // namespace ciface
+}  // namespace ciface::Android
diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/DInput.cpp b/Source/Core/InputCommon/ControllerInterface/DInput/DInput.cpp
index 847f4f8103..6afa98ac2d 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/DInput.cpp
+++ b/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
diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/DInput.h b/Source/Core/InputCommon/ControllerInterface/DInput/DInput.h
index 419a942cb4..ed159089e0 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/DInput.h
+++ b/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
diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.cpp b/Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.cpp
index e919952bec..bba6b87ae6 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.cpp
+++ b/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
diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.h b/Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.h
index 074b879051..70e8af8e6e 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.h
+++ b/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
diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.cpp b/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.cpp
index b68c990490..24edc4386c 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.cpp
+++ b/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
diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h b/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h
index 7d533314c3..e1d2500b15 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h
+++ b/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
diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.cpp b/Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.cpp
index 9e704e9420..94040994e7 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.cpp
+++ b/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
diff --git a/Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.h b/Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.h
index f31e9fb5a2..46955a1eb1 100644
--- a/Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.h
+++ b/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
diff --git a/Source/Core/InputCommon/ControllerInterface/Device.cpp b/Source/Core/InputCommon/ControllerInterface/Device.cpp
index 954d933ad8..5b0fa7ebd1 100644
--- a/Source/Core/InputCommon/ControllerInterface/Device.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/Device.cpp
@@ -14,9 +14,7 @@
 #include "Common/StringUtil.h"
 #include "Common/Thread.h"
 
-namespace ciface
-{
-namespace Core
+namespace ciface::Core
 {
 // Compared to an input's current state (ideally 1.0) minus abs(initial_state) (ideally 0.0).
 constexpr ControlState INPUT_DETECT_THRESHOLD = 0.55;
@@ -326,6 +324,4 @@ DeviceContainer::DetectInput(u32 wait_ms, const std::vector<std::string>& device
   // No input was detected. :'(
   return {};
 }
-
-}  // namespace Core
-}  // namespace ciface
+}  // namespace ciface::Core
diff --git a/Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.cpp b/Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.cpp
index baa3018616..44fc87b712 100644
--- a/Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.cpp
@@ -9,9 +9,7 @@
 
 #include "Common/Thread.h"
 
-namespace ciface
-{
-namespace ForceFeedback
+namespace ciface::ForceFeedback
 {
 // Template instantiation:
 template class ForceFeedbackDevice::TypedForce<DICONSTANTFORCE>;
@@ -257,6 +255,4 @@ void ForceFeedbackDevice::Force::Release()
   m_effect->Unload();
   m_effect->Release();
 }
-
-}  // namespace ForceFeedback
-}  // namespace ciface
+}  // namespace ciface::ForceFeedback
diff --git a/Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h b/Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h
index 8f5814106e..c689cef5a5 100644
--- a/Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h
+++ b/Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h
@@ -19,9 +19,7 @@
 #include "InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputAdapter.h"
 #endif
 
-namespace ciface
-{
-namespace ForceFeedback
+namespace ciface::ForceFeedback
 {
 class ForceFeedbackDevice : public Core::Device
 {
@@ -83,6 +81,4 @@ private:
   Common::Event m_update_event;
   Common::Flag m_run_thread;
 };
-
-}  // namespace ForceFeedback
-}  // namespace ciface
+}  // namespace ciface::ForceFeedback
diff --git a/Source/Core/InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputAdapter.h b/Source/Core/InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputAdapter.h
index 0e684251e7..0ebd74d485 100644
--- a/Source/Core/InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputAdapter.h
+++ b/Source/Core/InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputAdapter.h
@@ -20,9 +20,7 @@ typedef LONG* LPLONG;  // Missing type for ForceFeedback.h
 #include "Common/CommonTypes.h"    // for LONG
 #include "DirectInputConstants.h"  // Not stricty necessary
 
-namespace ciface
-{
-namespace ForceFeedback
+namespace ciface::ForceFeedback
 {
 // Prototypes
 class IUnknownImpl;
@@ -196,5 +194,4 @@ public:
     return FFDeviceSetForceFeedbackProperty(m_device, property, &value);
   }
 };
-}  // namespace ForceFeedback
-}  // namespace ciface
+}  // namespace ciface::ForceFeedback
diff --git a/Source/Core/InputCommon/ControllerInterface/OSX/OSX.h b/Source/Core/InputCommon/ControllerInterface/OSX/OSX.h
index 64a715b246..955b426f5e 100644
--- a/Source/Core/InputCommon/ControllerInterface/OSX/OSX.h
+++ b/Source/Core/InputCommon/ControllerInterface/OSX/OSX.h
@@ -4,14 +4,11 @@
 
 #pragma once
 
-namespace ciface
-{
-namespace OSX
+namespace ciface::OSX
 {
 void Init(void* window);
 void PopulateDevices(void* window);
 void DeInit();
 
 void DeviceElementDebugPrint(const void*, void*);
-}  // namespace OSX
-}  // namespace ciface
+}  // namespace ciface::OSX
diff --git a/Source/Core/InputCommon/ControllerInterface/OSX/OSX.mm b/Source/Core/InputCommon/ControllerInterface/OSX/OSX.mm
index a923c1ea26..716a56b61e 100644
--- a/Source/Core/InputCommon/ControllerInterface/OSX/OSX.mm
+++ b/Source/Core/InputCommon/ControllerInterface/OSX/OSX.mm
@@ -17,9 +17,7 @@
 #include "InputCommon/ControllerInterface/OSX/OSXJoystick.h"
 #include "InputCommon/ControllerInterface/OSX/RunLoopStopper.h"
 
-namespace ciface
-{
-namespace OSX
+namespace ciface::OSX
 {
 constexpr CFTimeInterval FOREVER = 1e20;
 static std::thread s_hotplug_thread;
@@ -227,5 +225,4 @@ void DeInit()
   IOHIDManagerClose(HIDManager, kIOHIDOptionsTypeNone);
   CFRelease(HIDManager);
 }
-}
-}
+}  // namespace ciface::OSX
diff --git a/Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.h b/Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.h
index d6579dc0c8..377f7d9b29 100644
--- a/Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.h
+++ b/Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.h
@@ -11,9 +11,7 @@
 #include "InputCommon/ControllerInterface/Device.h"
 #include "InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h"
 
-namespace ciface
-{
-namespace OSX
+namespace ciface::OSX
 {
 class Joystick : public ForceFeedback::ForceFeedbackDevice
 {
@@ -90,5 +88,4 @@ private:
 
   ForceFeedback::FFDeviceAdapterReference m_ff_device;
 };
-}  // namespace OSX
-}  // namespace ciface
+}  // namespace ciface::OSX
diff --git a/Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.mm b/Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.mm
index e2c08707c5..9ab06c91db 100644
--- a/Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.mm
+++ b/Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.mm
@@ -13,9 +13,7 @@
 #include "Common/Logging/Log.h"
 #include "Common/StringUtil.h"
 
-namespace ciface
-{
-namespace OSX
+namespace ciface::OSX
 {
 void Joystick::AddElements(CFArrayRef elements, std::set<IOHIDElementCookie>& cookies)
 {
@@ -341,5 +339,4 @@ bool Joystick::IsSameDevice(const IOHIDDeviceRef other_device) const
 {
   return m_device == other_device;
 }
-}
-}
+}  // namespace ciface::OSX
diff --git a/Source/Core/InputCommon/ControllerInterface/OSX/RunLoopStopper.h b/Source/Core/InputCommon/ControllerInterface/OSX/RunLoopStopper.h
index 0d37098a21..c43a0383dc 100644
--- a/Source/Core/InputCommon/ControllerInterface/OSX/RunLoopStopper.h
+++ b/Source/Core/InputCommon/ControllerInterface/OSX/RunLoopStopper.h
@@ -6,9 +6,7 @@
 
 #include <Foundation/Foundation.h>
 
-namespace ciface
-{
-namespace OSX
+namespace ciface::OSX
 {
 class RunLoopStopper
 {
@@ -40,6 +38,4 @@ public:
     CFRunLoopRemoveSource(runloop, m_source, mode);
   }
 };
-
-}  // namespace OSX
-}  // namespace ciface
+}  // namespace ciface::OSX
diff --git a/Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.cpp b/Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.cpp
index a0e17da549..6b44466eb6 100644
--- a/Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.cpp
@@ -20,9 +20,7 @@
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 #include "InputCommon/ControllerInterface/Pipes/Pipes.h"
 
-namespace ciface
-{
-namespace Pipes
+namespace ciface::Pipes
 {
 static const std::array<std::string, 12> s_button_tokens{
     {"A", "B", "X", "Y", "Z", "START", "L", "R", "D_UP", "D_DOWN", "D_LEFT", "D_RIGHT"}};
@@ -161,5 +159,4 @@ void PipeDevice::ParseCommand(const std::string& command)
     }
   }
 }
-}  // namespace Pipes
-}  // namespace ciface
+}  // namespace ciface::Pipes
diff --git a/Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.h b/Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.h
index 86202a20f4..3d316f64e4 100644
--- a/Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.h
+++ b/Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.h
@@ -8,9 +8,7 @@
 #include <string>
 #include <vector>
 
-namespace ciface
-{
-namespace Pipes
+namespace ciface::Pipes
 {
 // To create a piped controller input, create a named pipe in the
 // Pipes directory and write commands out to it. Commands are separated
@@ -58,5 +56,4 @@ private:
   std::map<std::string, PipeInput*> m_buttons;
   std::map<std::string, PipeInput*> m_axes;
 };
-}  // namespace Pipes
-}  // namespace ciface
+}  // namespace ciface::Pipes
diff --git a/Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.h b/Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.h
index ca1bbc7725..d36dcdf8bd 100644
--- a/Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.h
+++ b/Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.h
@@ -4,11 +4,8 @@
 
 #pragma once
 
-namespace ciface
-{
-namespace Quartz
+namespace ciface::Quartz
 {
 void PopulateDevices(void* window);
 void DeInit();
-}  // namespace Quartz
-}  // namespace ciface
+}  // namespace ciface::Quartz
diff --git a/Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.mm b/Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.mm
index 30802182a8..1201232223 100644
--- a/Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.mm
+++ b/Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.mm
@@ -6,9 +6,7 @@
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 #include "InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.h"
 
-namespace ciface
-{
-namespace Quartz
+namespace ciface::Quartz
 {
 void PopulateDevices(void* window)
 {
@@ -21,5 +19,4 @@ void PopulateDevices(void* window)
 void DeInit()
 {
 }
-}  // namespace Quartz
-}  // namespace ciface
+}  // namespace ciface::Quartz
diff --git a/Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.h b/Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.h
index 8997fc0e53..902621cddc 100644
--- a/Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.h
+++ b/Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.h
@@ -8,9 +8,7 @@
 
 #include "InputCommon/ControllerInterface/Device.h"
 
-namespace ciface
-{
-namespace Quartz
+namespace ciface::Quartz
 {
 std::string KeycodeToName(const CGKeyCode keycode);
 
@@ -73,5 +71,4 @@ private:
 
   uint32_t m_windowid;
 };
-}  // namespace Quartz
-}  // namespace ciface
+}  // namespace ciface::Quartz
diff --git a/Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.mm b/Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.mm
index a52f8df4b0..6cbc0a3f11 100644
--- a/Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.mm
+++ b/Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.mm
@@ -9,9 +9,7 @@
 #include <Carbon/Carbon.h>
 #include <Cocoa/Cocoa.h>
 
-namespace ciface
-{
-namespace Quartz
+namespace ciface::Quartz
 {
 std::string KeycodeToName(const CGKeyCode keycode)
 {
@@ -223,5 +221,4 @@ std::string KeyboardAndMouse::Button::GetName() const
     return "Right Click";
   return std::string("Click ") + char('0' + m_button);
 }
-}  // namespace Quartz
-}  // namespace ciface
+}  // namespace ciface::Quartz
diff --git a/Source/Core/InputCommon/ControllerInterface/SDL/SDL.cpp b/Source/Core/InputCommon/ControllerInterface/SDL/SDL.cpp
index a26deee6e8..2d2d256c2a 100644
--- a/Source/Core/InputCommon/ControllerInterface/SDL/SDL.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/SDL/SDL.cpp
@@ -19,9 +19,7 @@
 #pragma comment(lib, "SDL2.lib")
 #endif
 
-namespace ciface
-{
-namespace SDL
+namespace ciface::SDL
 {
 static std::string GetJoystickName(int index)
 {
@@ -491,5 +489,4 @@ ControlState Joystick::Hat::GetState() const
 {
   return (SDL_JoystickGetHat(m_js, m_index) & (1 << m_direction)) > 0;
 }
-}  // namespace SDL
-}  // namespace ciface
+}  // namespace ciface::SDL
diff --git a/Source/Core/InputCommon/ControllerInterface/SDL/SDL.h b/Source/Core/InputCommon/ControllerInterface/SDL/SDL.h
index 890a064d8b..e9ac021bd9 100644
--- a/Source/Core/InputCommon/ControllerInterface/SDL/SDL.h
+++ b/Source/Core/InputCommon/ControllerInterface/SDL/SDL.h
@@ -16,9 +16,7 @@
 
 #include "InputCommon/ControllerInterface/Device.h"
 
-namespace ciface
-{
-namespace SDL
+namespace ciface::SDL
 {
 void Init();
 void DeInit();
@@ -158,5 +156,4 @@ private:
   SDL_Haptic* m_haptic;
 #endif
 };
-}  // namespace SDL
-}  // namespace ciface
+}  // namespace ciface::SDL
diff --git a/Source/Core/InputCommon/ControllerInterface/Win32/Win32.h b/Source/Core/InputCommon/ControllerInterface/Win32/Win32.h
index 5f4a65c509..acf72d76a0 100644
--- a/Source/Core/InputCommon/ControllerInterface/Win32/Win32.h
+++ b/Source/Core/InputCommon/ControllerInterface/Win32/Win32.h
@@ -4,12 +4,9 @@
 
 #pragma once
 
-namespace ciface
-{
-namespace Win32
+namespace ciface::Win32
 {
 void Init(void* hwnd);
 void PopulateDevices(void* hwnd);
 void DeInit();
-}  // namespace Win32
-}  // namespace ciface
+}  // namespace ciface::Win32
diff --git a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
index d6ecdb9d81..cda20a08db 100644
--- a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
@@ -8,9 +8,7 @@
 #define XINPUT_GAMEPAD_GUIDE 0x0400
 #endif
 
-namespace ciface
-{
-namespace XInput
+namespace ciface::XInput
 {
 static const struct
 {
@@ -243,5 +241,4 @@ void Device::Motor::SetState(ControlState state)
   m_motor = (WORD)(state * m_range);
   m_parent->UpdateMotors();
 }
-}  // namespace XInput
-}  // namespace ciface
+}  // namespace ciface::XInput
diff --git a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.h b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.h
index 0b299e6324..3c543fb18f 100644
--- a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.h
+++ b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.h
@@ -18,9 +18,7 @@
 #error You are building this module against the wrong version of DirectX. You probably need to remove DXSDK_DIR from your include path and/or _WIN32_WINNT is wrong.
 #endif
 
-namespace ciface
-{
-namespace XInput
+namespace ciface::XInput
 {
 void Init();
 void PopulateDevices();
@@ -105,5 +103,4 @@ private:
   const BYTE m_subtype;
   const u8 m_index;
 };
-}  // namespace XInput
-}  // namespace ciface
+}  // namespace ciface::XInput
diff --git a/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp b/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
index 77acf8d1d3..30f10c8537 100644
--- a/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
@@ -46,9 +46,7 @@
 // more responsive. This might be useful as a user-customizable option.
 #define MOUSE_AXIS_SMOOTHING 1.5f
 
-namespace ciface
-{
-namespace XInput2
+namespace ciface::XInput2
 {
 // This function will add zero or more KeyboardMouse objects to devices.
 void PopulateDevices(void* const hwnd)
@@ -369,5 +367,4 @@ ControlState KeyboardMouse::Axis::GetState() const
 {
   return std::max(0.0f, *m_axis / (m_positive ? MOUSE_AXIS_SENSITIVITY : -MOUSE_AXIS_SENSITIVITY));
 }
-}  // namespace XInput2
-}  // namespace ciface
+}  // namespace ciface::XInput2
diff --git a/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.h b/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.h
index 72ea347461..e657f8b8df 100644
--- a/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.h
+++ b/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.h
@@ -14,9 +14,7 @@ extern "C" {
 
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 
-namespace ciface
-{
-namespace XInput2
+namespace ciface::XInput2
 {
 void PopulateDevices(void* const hwnd);
 
@@ -113,5 +111,4 @@ private:
   const int pointer_deviceid, keyboard_deviceid;
   std::string name;
 };
-}  // namespace XInput2
-}  // namespace ciface
+}  // namespace ciface::XInput2
diff --git a/Source/Core/InputCommon/ControllerInterface/evdev/evdev.cpp b/Source/Core/InputCommon/ControllerInterface/evdev/evdev.cpp
index da1e5fc918..4443eaad3a 100644
--- a/Source/Core/InputCommon/ControllerInterface/evdev/evdev.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/evdev/evdev.cpp
@@ -23,9 +23,7 @@
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 #include "InputCommon/ControllerInterface/evdev/evdev.h"
 
-namespace ciface
-{
-namespace evdev
+namespace ciface::evdev
 {
 static std::thread s_hotplug_thread;
 static Common::Flag s_hotplug_thread_running;
@@ -499,5 +497,4 @@ evdevDevice::Effect::~Effect()
   m_effect.type = DISABLED_EFFECT_TYPE;
   UpdateEffect();
 }
-}  // namespace evdev
-}  // namespace ciface
+}  // namespace ciface::evdev
diff --git a/Source/Core/InputCommon/ControllerInterface/evdev/evdev.h b/Source/Core/InputCommon/ControllerInterface/evdev/evdev.h
index 4b6d0bc0b2..9f2996b420 100644
--- a/Source/Core/InputCommon/ControllerInterface/evdev/evdev.h
+++ b/Source/Core/InputCommon/ControllerInterface/evdev/evdev.h
@@ -10,9 +10,7 @@
 
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 
-namespace ciface
-{
-namespace evdev
+namespace ciface::evdev
 {
 void Init();
 void PopulateDevices();
@@ -120,5 +118,4 @@ private:
   std::string m_name;
   bool m_interesting = false;
 };
-}  // namespace evdev
-}  // namespace ciface
+}  // namespace ciface::evdev