Unified flags for orienting wxBookCtrls (with backward compatibility). Centralised...

[wxWidgets.git] / include / wx / math.h

diff --git a/include/wx/math.h b/include/wx/math.h
index 72628269cf7855d11caf4e8c278a9a42c8754e45..5c7b91e7d8a7ee702012417905ed8ac5b54fb0f2 100644 (file)
--- a/include/wx/math.h
+++ b/include/wx/math.h
@@ -83,6 +83,8 @@ inline bool wxIsSameDouble(double x, double y)
     // VZ: this warning, given for operators==() and !=() is not wrong, as ==
     //     shouldn't be used with doubles, but we get too many of them and
     //     removing these operators is probably not a good idea
+    //
+    //     Maybe we should alway compare doubles up to some "epsilon" precision
     #pragma warning(push)
 
     // floating-point equality and inequality comparisons are unreliable
@@ -95,7 +97,22 @@ inline bool wxIsSameDouble(double x, double y)
 #else /* !__INTELC__ */
 inline bool wxIsSameDouble(double x, double y) { return x == y; }
 #endif /* __INTELC__/!__INTELC__ */
+
+inline bool wxIsNullDouble(double x) { return wxIsSameDouble(x, 0.); }
 #endif /* __cplusplus */
 
 
+#if wxUSE_APPLE_IEEE
+#ifdef __cplusplus
+    extern "C" {
+#endif
+    /* functions from common/extended.c */
+    extern wxFloat64 ConvertFromIeeeExtended(const wxInt8 *bytes);
+    extern void ConvertToIeeeExtended(wxFloat64 num, wxInt8 *bytes);
+#ifdef __cplusplus
+    }
+#endif
+#endif /* wxUSE_APPLE_IEEE */
+
+
 #endif /* _WX_MATH_H_ */