source: trunk/src/corelib/kernel/qmath.h@ 135

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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 qAcos(qreal v)
{
#ifdef QT_USE_MATH_H_FLOATS
    if (sizeof(qreal) == sizeof(float))
        return acosf(v);
    else
#endif
        return acos(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