Changeset 7184 for code/trunk/src/libraries/util/Math.h

Timestamp:

Aug 18, 2010, 9:46:16 PM (15 years ago)

Author:

rgrieder

Message:

Replaced mathematical constants with a common definition in Math.h.
Use math::pi, math::pi_d (double), math::e, etc. from now on.

File:

• code/trunk/src/libraries/util/Math.h (modified) (1 diff)

code/trunk/src/libraries/util/Math.h

@@ -59 +59 @@
 namespace orxonox
 {
+    // C++ doesn't define any constants for pi, e, etc.
+    namespace math
+    {
+        const float pi      = 3.14159265f;
+        const float pi_2    = 1.57079633f;
+        const float pi_4    = 7.85398163e-1f;
+        const float e       = 2.71828183f;
+        const float sqrt2   = 1.41421356f;
+        const float sqrt2_2 = 7.07106781e-1f;
+
+        const double pi_d      = 3.14159265358979324;
+        const double pi_2_d    = 1.57079632679489662;
+        const double pi_4_d    = 7.85398163397448310e-1;
+        const double e_d       = 2.71828182845904524;
+        const double sqrt2_d   = 1.41421356237309505;
+        const double sqrt2_2_d = 7.07106781186547524e-1;
+    }
+
 #if OGRE_VERSION < 0x010603
     _UtilExport std::ostream& operator<<(std::ostream& out, const orxonox::Radian& radian);