1 files changed, 27 insertions, 0 deletions
diff --git a/FL/math.h b/FL/math.h
new file mode 100644
index 000000000..57dc3f9c8
--- /dev/null
+++ b/FL/math.h
@@ -0,0 +1,27 @@
+#include <math.h>
+
+#ifdef WIN32
+// things missing from <math.h>:
+
+#define M_PI            3.14159265358979323846
+#define M_PI_2          1.57079632679489661923
+#define M_PI_4          0.78539816339744830962
+#define M_1_PI          0.31830988618379067154
+#define M_2_PI          0.63661977236758134308
+#define M_SQRT2         1.41421356237309504880
+#define M_SQRT1_2       0.70710678118654752440
+
+#else
+
+#ifdef __EMX__
+#include <float.h>
+#endif
+
+#endif
+
+#if defined(WIN32) || defined(CRAY)
+
+inline double rint(double v) {return floor(v+.5);}
+inline double copysign(double a, double b) {return b<0 ? -a : a;}
+
+#endif