summaryrefslogtreecommitdiffstats
path: root/src/corelib/global/qfloat16.cpp
Commit message (Collapse)AuthorAgeFilesLines
* Centralize the check that the floating point implementation follows IEEE754Giuseppe D'Angelo2017-04-211-18/+0
| | | | | | | | | | | | | C++ does not specify which kind of floating point implementation is being used. The C Standard doesn't either, but it includes a normative reference for implementations adoping it (ISO/IEC 9899:2011 Annex F). There are a few existing checks in qfloat16.cpp; move them to qglobal.cpp (next to the other, similar checks), and improve them by actually checking that the radix used for floating point numbers is 2. Change-Id: I704a3a8efeb51014b3be23fb236654d647a6f44f Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Fix is_iec559 assert on GHS compilerKimmo Ollila2017-02-151-0/+13
| | | | | | | | | | | GHS compiler is not fully compliant with iec559. Therefore we need to replace is_iec559 assertion with separate checks to build quint16. Change-Id: I88c57e394b8d4e7899ee7d4a13cbfbac9436b2fc Reviewed-by: Rolland Dudemaine <rolland@ghs.com> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* New qfloat16 classGlen Mabey2017-01-311-0/+117
This constitutes a fairly complete submission of an entirely new floating point type which conforms to IEEE 754 as a 16-bit storage class. Conversion between qfloat16 and float is currently performed through a sequence of lookup tables. Global-level functions qRound(), qRound64(), qFuzzyCompare(), qFuzzyIsNull(), and qIsNull() each with a qfloat16 parameter have been included for completeness. [ChangeLog][QtCore] Added new qfloat16 class. Change-Id: Ia52eb27846965c14f8140c00faf5ba33c9443976 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>