valentina/src/libs/vmisc/vmath.h

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**
** Copyright (C) 2013 Digia Plc.
** Contact: http://www.qt-project.org/legal
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** $QT_BEGIN_LICENSE:GPL$
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
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#ifndef VMATH_H
#define VMATH_H

#include <QtMath>

#ifndef M_2PI
#define M_2PI (6.28318530717958647692) /* 2*pi */
#endif

#ifndef M_3PI_4
#define M_3PI_4 (2.35619449019234492884) /* 3*pi/4 */
#endif

#ifndef M_3PI_8
#define M_3PI_8 (1.17809724509617246442) /* 3*pi/8 */
#endif

#ifndef M_PI_8
#define M_PI_8 (0.39269908169872415480) /* pi/8 */
#endif

#ifndef M_4_PI
#define M_4_PI (1.27323954473516268615) /* 4/pi */
#endif

#ifndef M_1_SQRT2
#define M_1_SQRT2 (0.70710678118654752440) /* 1/sqrt(2) */
#endif

#ifndef M_EULER
#define M_EULER (0.57721566490153286060)
#endif

template <typename T>
Q_DECL_CONSTEXPR inline T vRound(T d, int p)
{ return p > 0 ? qRound(d * (p * 10.0)) / (p * 10.0) : qRound(d); }

#endif // VMATH_H