diff options
| -rw-r--r-- | src/corelib/global/global.pri | 1 | ||||
| -rw-r--r-- | src/corelib/global/qfloat16.cpp | 17 | ||||
| -rw-r--r-- | src/corelib/global/qfloat16.h | 14 | ||||
| -rw-r--r-- | src/corelib/global/qfloat16_p.h | 95 |
4 files changed, 20 insertions, 107 deletions
diff --git a/src/corelib/global/global.pri b/src/corelib/global/global.pri index 029357ff43..428c674307 100644 --- a/src/corelib/global/global.pri +++ b/src/corelib/global/global.pri @@ -12,7 +12,6 @@ HEADERS += \ global/qendian_p.h \ global/qnumeric_p.h \ global/qnumeric.h \ - global/qfloat16_p.h \ global/qfloat16.h \ global/qglobalstatic.h \ global/qlibraryinfo.h \ diff --git a/src/corelib/global/qfloat16.cpp b/src/corelib/global/qfloat16.cpp index fd608efe55..110d7c4d7c 100644 --- a/src/corelib/global/qfloat16.cpp +++ b/src/corelib/global/qfloat16.cpp @@ -37,7 +37,7 @@ ** ****************************************************************************/ -#include "qfloat16_p.h" +#include "qfloat16.h" #include "private/qsimd_p.h" QT_BEGIN_NAMESPACE @@ -65,28 +65,31 @@ QT_BEGIN_NAMESPACE */ /*! - Returns true if the \c qfloat16 \a {f} is equivalent to infinity. + \fn bool qIsInf(qfloat16 f) \relates <QFloat16> + Returns true if the \c qfloat16 \a {f} is equivalent to infinity. + \sa qIsInf */ -Q_REQUIRED_RESULT bool qIsInf(qfloat16 f) Q_DECL_NOTHROW { return qt_is_inf(f); } /*! - Returns true if the \c qfloat16 \a {f} is not a number (NaN). + \fn bool qIsNaN(qfloat16 f) \relates <QFloat16> + Returns true if the \c qfloat16 \a {f} is not a number (NaN). + \sa qIsNaN */ -Q_REQUIRED_RESULT bool qIsNaN(qfloat16 f) Q_DECL_NOTHROW { return qt_is_nan(f); } /*! - Returns true if the \c qfloat16 \a {f} is a finite number. + \fn bool qIsFinite(qfloat16 f) \relates <QFloat16> + Returns true if the \c qfloat16 \a {f} is a finite number. + \sa qIsFinite */ -Q_REQUIRED_RESULT bool qIsFinite(qfloat16 f) Q_DECL_NOTHROW { return qt_is_finite(f); } /*! \fn int qRound(qfloat16 value) \relates <QFloat16> diff --git a/src/corelib/global/qfloat16.h b/src/corelib/global/qfloat16.h index 42cb1357f1..e823d0298b 100644 --- a/src/corelib/global/qfloat16.h +++ b/src/corelib/global/qfloat16.h @@ -67,10 +67,14 @@ QT_BEGIN_NAMESPACE class qfloat16 { public: - Q_DECL_CONSTEXPR inline qfloat16() Q_DECL_NOTHROW : b16(0) { } + constexpr inline qfloat16() Q_DECL_NOTHROW : b16(0) {} inline qfloat16(float f) Q_DECL_NOTHROW; inline operator float() const Q_DECL_NOTHROW; + // Support for qIs{Inf,NaN,Finite}: + bool isInf() const Q_DECL_NOTHROW { return ((b16 >> 8) & 0x7e) == 0x7c; } + bool isNaN() const Q_DECL_NOTHROW { return ((b16 >> 8) & 0x7e) == 0x7e; } + bool isFinite() const Q_DECL_NOTHROW { return ((b16 >> 8) & 0x7c) != 0x7c; } private: quint16 b16; @@ -89,9 +93,11 @@ Q_DECLARE_TYPEINFO(qfloat16, Q_PRIMITIVE_TYPE); Q_CORE_EXPORT void qFloatToFloat16(qfloat16 *, const float *, qsizetype length) Q_DECL_NOTHROW; Q_CORE_EXPORT void qFloatFromFloat16(float *, const qfloat16 *, qsizetype length) Q_DECL_NOTHROW; -Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsInf(qfloat16 f) Q_DECL_NOTHROW; // complements qnumeric.h -Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsNaN(qfloat16 f) Q_DECL_NOTHROW; // complements qnumeric.h -Q_REQUIRED_RESULT Q_CORE_EXPORT bool qIsFinite(qfloat16 f) Q_DECL_NOTHROW; // complements qnumeric.h +// Complement qnumeric.h: +Q_REQUIRED_RESULT inline bool qIsInf(qfloat16 f) Q_DECL_NOTHROW { return f.isInf(); } +Q_REQUIRED_RESULT inline bool qIsNaN(qfloat16 f) Q_DECL_NOTHROW { return f.isNaN(); } +Q_REQUIRED_RESULT inline bool qIsFinite(qfloat16 f) Q_DECL_NOTHROW { return f.isFinite(); } +// Q_REQUIRED_RESULT quint32 qFloatDistance(qfloat16 a, qfloat16 b); // The remainder of these utility functions complement qglobal.h Q_REQUIRED_RESULT inline int qRound(qfloat16 d) Q_DECL_NOTHROW diff --git a/src/corelib/global/qfloat16_p.h b/src/corelib/global/qfloat16_p.h deleted file mode 100644 index f3fc96e119..0000000000 --- a/src/corelib/global/qfloat16_p.h +++ /dev/null @@ -1,95 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 by Southwest Research Institute (R) -** Contact: http://www.qt-project.org/legal -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QFLOAT16_P_H -#define QFLOAT16_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QtCore/qfloat16.h> -#include <QtCore/qsysinfo.h> - -QT_BEGIN_NAMESPACE - -static inline bool qt_is_inf(qfloat16 d) Q_DECL_NOTHROW -{ - bool is_inf; - uchar *ch = (uchar *)&d; - if (QSysInfo::ByteOrder == QSysInfo::BigEndian) - is_inf = (ch[0] & 0x7c) == 0x7c && (ch[0] & 0x02) == 0; - else - is_inf = (ch[1] & 0x7c) == 0x7c && (ch[1] & 0x02) == 0; - return is_inf; -} - -static inline bool qt_is_nan(qfloat16 d) Q_DECL_NOTHROW -{ - bool is_nan; - uchar *ch = (uchar *)&d; - if (QSysInfo::ByteOrder == QSysInfo::BigEndian) - is_nan = (ch[0] & 0x7c) == 0x7c && (ch[0] & 0x02) != 0; - else - is_nan = (ch[1] & 0x7c) == 0x7c && (ch[1] & 0x02) != 0; - return is_nan; -} - -static inline bool qt_is_finite(qfloat16 d) Q_DECL_NOTHROW -{ - bool is_finite; - uchar *ch = (uchar *)&d; - if (QSysInfo::ByteOrder == QSysInfo::BigEndian) - is_finite = (ch[0] & 0x7c) != 0x7c; - else - is_finite = (ch[1] & 0x7c) != 0x7c; - return is_finite; -} - - -QT_END_NAMESPACE - -#endif // QFLOAT16_P_H |