Replace typedefs by c++11 alias declaration

src/collision/narrowphase/GJK/Simplex.h

@@ -34,7 +34,7 @@
 namespace reactphysics3d {
 
 // Type definitions
-typedef unsigned int Bits;
+using Bits = unsigned int;
 
 // Class Simplex
 /**

src/configuration.h

@@ -46,15 +46,15 @@ namespace reactphysics3d {
 
 // ------------------- Type definitions ------------------- //
 
-typedef unsigned int uint;
-typedef long unsigned int luint;
-typedef luint bodyindex;
-typedef std::pair<bodyindex, bodyindex> bodyindexpair;
+using uint = unsigned int;
+using luint = long unsigned int;
+using bodyindex = luint;
+using bodyindexpair = std::pair<bodyindex, bodyindex>;
 
-typedef signed short int16;
-typedef signed int int32;
-typedef unsigned short uint16;
-typedef unsigned int uint32;
+using int16 = signed short;
+using int32 = signed int;
+using uint16 = unsigned short;
+using uint32 = unsigned int;
 
 // ------------------- Enumerations ------------------- //
 

src/decimal.h

@@ -30,9 +30,9 @@
 namespace reactphysics3d {
 
 #if defined(IS_DOUBLE_PRECISION_ENABLED)   // If we are compiling for double precision
-    typedef double decimal;
+    using decimal = double;
 #else                                   // If we are compiling for single precision
-    typedef float decimal;
+    using decimal = float;
 #endif
 
 }

src/engine/OverlappingPair.h

@@ -35,7 +35,7 @@
 namespace reactphysics3d {
 
 // Type for the overlapping pair ID
-typedef std::pair<uint, uint> overlappingpairid;
+using overlappingpairid = std::pair<uint, uint>;
 
 // Class OverlappingPair
 /**