X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ae3c17b4013e80b99976c750c19fca47729517f6..5b88a837ba75928cd3835a6b97ae2bf5ad983a6e:/interface/wx/math.h?ds=sidebyside diff --git a/interface/wx/math.h b/interface/wx/math.h index e60620eaa5..f161087063 100644 --- a/interface/wx/math.h +++ b/interface/wx/math.h @@ -6,7 +6,7 @@ // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// -/** @ingroup group_funcmacro_math */ +/** @addtogroup group_funcmacro_math */ //@{ /** @@ -24,5 +24,42 @@ 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); + //@}