math/constants.h

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#ifndef _MATH_CONSTANTS_H
#define _MATH_CONSTANTS_H

#include "support/configCosmos.h"
#include <cstdint>


const double PI=3.1415926535897932384626433832795028841971693993751;
const double DPI=3.1415926535897932384626433832795028841971693993751;
const double D2PI=6.2831853071795864769252867665590057683943387987502;
const double DPI2=1.5707963267948966192313216916397514420985846996876;
const double DS2R=7.2722052166430399038487115353692196393452995355905e-5;
const double DAS2R=4.8481368110953599358991410235794797595635330237270e-6;

const double DTOR=static_cast <double>(DPI / 180.);
const double RTOD=static_cast <double>(180. / DPI);
#define RADOF(deg)  static_cast <double>(DTOR * (deg))
#define DEG2RAD(deg)  static_cast <double>(DTOR * (deg))
#define DEGOF(rad)  static_cast <double>(RTOD * (rad))
#define RAD2DEG(rad)  (double)(RTOD * (rad))

const double O_UNDEFINED=999999.1;
const double O_INFINITE=10000000000000000000000000.9;
const double O_SMALL=0.00000001;
const double D_SMALL=static_cast <double>(1e-76);

// BIGENDIAN and LITTLEENDIAN are defined somewhere else. This lets us place them in
// the ByteOrder class.
#undef BIGENDIAN
#undef LITTLEENDIAN

enum class ByteOrder : std::uint8_t {
    BIGENDIAN=0, // was previouly ORDER_BIGENDIAN, replace by ByteOrder::BIGENDIAN
    PPC=ByteOrder::BIGENDIAN,
    MOTOROLA=ByteOrder::BIGENDIAN,
    LITTLEENDIAN=1, // was previouly ORDER_LITTLEENDIAN
    INTEL=ByteOrder::LITTLEENDIAN,
    NETWORK=ByteOrder::BIGENDIAN
};

#define DIRECTION_ROW 0
#define DIRECTION_COLUMN 1

#define ESTIMATOR_SIZE 5

#endif //_MATH_CONSTANTS_H