X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b21126db7a8232fa9e64b29f916d73d6b0153bef..92c0fc34c104c8d7c12d6a3b78ea232690fc23f4:/interface/wx/math.h

diff --git a/interface/wx/math.h b/interface/wx/math.h
index 6047703863..1431f452ea 100644
--- a/interface/wx/math.h
+++ b/interface/wx/math.h
@@ -2,8 +2,7 @@
 // Name:        math.h
 // Purpose:     interface of global functions
 // Author:      wxWidgets team
-// RCS-ID:      $Id$
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 /** @addtogroup group_funcmacro_math */
@@ -24,5 +23,42 @@ int wxFinite(double x);
 */
 bool wxIsNaN(double x);
 
+/**
+    Converts the given array of 10 bytes (corresponding to 80 bits) to
+    a float number according to the IEEE floating point standard format
+    (aka IEEE standard 754).
+
+    @see wxConvertToIeeeExtended() to perform the opposite operation
+*/
+wxFloat64 wxConvertFromIeeeExtended(const wxInt8 *bytes);
+
+/**
+    Converts the given floating number @a num in a sequence of 10 bytes
+    which are stored in the given array @a bytes (which must be large enough)
+    according to the IEEE floating point standard format
+    (aka IEEE standard 754).
+
+    @see wxConvertFromIeeeExtended() to perform the opposite operation
+*/
+void wxConvertToIeeeExtended(wxFloat64 num, wxInt8 *bytes);
+
+/**
+    Small wrapper around round().
+*/
+int wxRound(double x);
+
+/** 
+   Returns true if both double values are identical. This is
+   only reliable if both values have been assigned the same
+   value.
+*/
+bool wxIsSameDouble(double x, double y);
+
+/**
+   Return true of @a x is exactly zero. This is only reliable
+   if it has been assigned 0.
+*/
+bool wxIsNullDouble(double x);
+
 //@}