Make enumeration counts constant expressions

This change allows now having these variables as array sizes that
are not Variable Length Arrays like in structs for example.

To note however that this changes the type from unsigned int to an
implementation defined type which usually `int` which is signed and
not unsigned.

include/CSFML/Window/Keyboard.h

@@ -144,8 +144,10 @@ typedef enum
     sfKeyPause,        ///< The Pause key
 } sfKeyCode;
 
-CSFML_WINDOW_API const unsigned int sfKeyCount; ///< The total number of keyboard keys
+enum
-
+{
+    sfKeyCount = sfKeyPause + 1 ///< The total number of keyboard keys
+};
 
 ////////////////////////////////////////////////////////////
 /// \brief Scancodes
@@ -312,8 +314,10 @@ typedef enum
     sfScanLaunchMediaSelect,  //!< Keyboard Launch Media Select key
 } sfScancode;
 
-CSFML_WINDOW_API const unsigned int sfScancodeCount; //!< The total number of scancodes
+enum
-
+{
+    sfScancodeCount = sfScanLaunchMediaSelect + 1 //!< The total number of scancodes
+};
 
 ////////////////////////////////////////////////////////////
 /// \brief Check if a key is pressed

include/CSFML/Window/Mouse.h

@@ -46,7 +46,10 @@ typedef enum
     sfMouseButtonExtra2, ///< The second extra mouse button
 } sfMouseButton;
 
-CSFML_WINDOW_API const unsigned int sfMouseButtonCount; ///< The total number of mouse buttons
+enum
+{
+    sfMouseButtonCount = sfMouseButtonExtra2 + 1 ///< The total number of mouse buttons
+};
 
 ////////////////////////////////////////////////////////////
 /// \brief Mouse wheels

include/CSFML/Window/Sensor.h

@@ -47,8 +47,10 @@ typedef enum
     sfSensorOrientation, ///< Measures the absolute 3D orientation (degrees)
 } sfSensorType;
 
-CSFML_WINDOW_API const unsigned int sfSensorCount; ///< The total number of sensor types
+enum
-
+{
+    sfSensorCount = sfSensorOrientation + 1 ///< The total number of sensor types
+};
 
 ////////////////////////////////////////////////////////////
 /// \brief Check if a sensor is available on the underlying platform

src/CSFML/Window/Keyboard.cpp

@@ -33,11 +33,6 @@
 #include <cstring>
 
 
-////////////////////////////////////////////////////////////
-const unsigned int sfKeyCount      = sfKeyPause + 1;
-const unsigned int sfScancodeCount = sfScanLaunchMediaSelect + 1;
-
-
 ////////////////////////////////////////////////////////////
 bool sfKeyboard_isKeyPressed(sfKeyCode key)
 {

src/CSFML/Window/Mouse.cpp

@@ -33,10 +33,6 @@
 #include <SFML/Window/Mouse.hpp>
 
 
-////////////////////////////////////////////////////////////
-const unsigned int sfMouseButtonCount = sfMouseButtonExtra2 + 1;
-
-
 ////////////////////////////////////////////////////////////
 bool sfMouse_isButtonPressed(sfMouseButton button)
 {

src/CSFML/Window/Sensor.cpp

@@ -31,10 +31,6 @@
 #include <SFML/Window/Sensor.hpp>
 
 
-////////////////////////////////////////////////////////////
-const unsigned int sfSensorCount = sfSensorOrientation + 1;
-
-
 ////////////////////////////////////////////////////////////
 bool sfSensor_isAvailable(sfSensorType sensor)
 {

test/Window/Keyboard.test.cpp

@@ -14,7 +14,7 @@ TEST_CASE("[Window] sfKeyboard")
         STATIC_CHECK(sfKeyC == static_cast<int>(sf::Keyboard::Key::C));
         STATIC_CHECK(sfKeyD == static_cast<int>(sf::Keyboard::Key::D));
         STATIC_CHECK(sfKeyPause == static_cast<int>(sf::Keyboard::Key::Pause));
-        CHECK(sfKeyCount == sf::Keyboard::KeyCount);
+        STATIC_CHECK(sfKeyCount == sf::Keyboard::KeyCount);
     }
 
     SECTION("sfScancode")
@@ -24,6 +24,6 @@ TEST_CASE("[Window] sfKeyboard")
         STATIC_CHECK(sfScanB == static_cast<int>(sf::Keyboard::Scan::B));
         STATIC_CHECK(sfScanC == static_cast<int>(sf::Keyboard::Scan::C));
         STATIC_CHECK(sfScanD == static_cast<int>(sf::Keyboard::Scan::D));
-        CHECK(sfScancodeCount == sf::Keyboard::ScancodeCount);
+        STATIC_CHECK(sfScancodeCount == sf::Keyboard::ScancodeCount);
     }
 }

test/Window/Mouse.test.cpp

@@ -13,7 +13,7 @@ TEST_CASE("[Window] sfMouse")
         STATIC_CHECK(sfMouseMiddle == static_cast<int>(sf::Mouse::Button::Middle));
         STATIC_CHECK(sfMouseButtonExtra1 == static_cast<int>(sf::Mouse::Button::Extra1));
         STATIC_CHECK(sfMouseButtonExtra2 == static_cast<int>(sf::Mouse::Button::Extra2));
-        CHECK(sfMouseButtonCount == sf::Mouse::ButtonCount);
+        STATIC_CHECK(sfMouseButtonCount == sf::Mouse::ButtonCount);
     }
 
     SECTION("sfMouseWheel")

test/Window/Sensor.test.cpp

@@ -14,6 +14,6 @@ TEST_CASE("[Window] sfSensor")
         STATIC_CHECK(sfSensorGravity == static_cast<int>(sf::Sensor::Type::Gravity));
         STATIC_CHECK(sfSensorUserAcceleration == static_cast<int>(sf::Sensor::Type::UserAcceleration));
         STATIC_CHECK(sfSensorOrientation == static_cast<int>(sf::Sensor::Type::Orientation));
-        CHECK(sfSensorCount == sf::Sensor::Count);
+        STATIC_CHECK(sfSensorCount == sf::Sensor::Count);
     }
 }