qmath.h
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtCore module of the Qt Toolkit.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 3.0 as published by the Free
- ** Software Foundation and appearing in the file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
- ** to ensure GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
- **
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- ** Designer, grants users of the Qt/Eclipse Integration plug-in the
- ** right for the Qt/Eclipse Integration to link to functionality
- ** provided by Qt Designer and its related libraries.
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- ****************************************************************************/
- #ifndef QMATH_H
- #define QMATH_H
- #include <math.h>
- #include <QtCore/qglobal.h>
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- QT_MODULE(Core)
- inline int qCeil(qreal v)
- {
- #ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return int(ceilf(v));
- else
- #endif
- return int(ceil(v));
- }
- inline int qFloor(qreal v)
- {
- #ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return int(floorf(v));
- else
- #endif
- return int(floor(v));
- }
- inline qreal qSin(qreal v)
- {
- #ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return sinf(v);
- else
- #endif
- return sin(v);
- }
- inline qreal qCos(qreal v)
- {
- #ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return cosf(v);
- else
- #endif
- return cos(v);
- }
- inline qreal qSqrt(qreal v)
- {
- #ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return sqrtf(v);
- else
- #endif
- return sqrt(v);
- }
- inline qreal qLn(qreal v)
- {
- #ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return logf(v);
- else
- #endif
- return log(v);
- }
- inline qreal qPow(qreal x, qreal y)
- {
- #ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return powf(x, y);
- else
- #endif
- return pow(x, y);
- }
- QT_END_NAMESPACE
- QT_END_HEADER
- #endif // QMATH_H