Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.

sdk/lib/crt/math/modff.c

@@ -0,0 +1,17 @@
+
+#include <math.h>
+
+_Check_return_
+float
+__cdecl
+modff(
+    _In_ float x,
+    _Out_ float *y)
+{
+    double _Di, _Df;
+
+    _Df = modf((double)x,&_Di);
+    *y = (float)_Di;
+
+    return (float)_Df;
+}