literals.h

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#ifndef MU_LITERALS_H_
#define MU_LITERALS_H_

#include <cmath>

namespace mu {

/* mathematical constants (cmath) */
constexpr double e = M_E;
constexpr double log2e = M_LOG2E;
constexpr double log10e = M_LOG10E;
constexpr double ln2 = M_LN2;
constexpr double ln10 = M_LN10;
constexpr double pi = M_PI;
constexpr double pi2 = M_PI_2;
constexpr double pi4 = M_PI_4;
constexpr double inv_pi = M_1_PI;
constexpr double sqrt2 = M_SQRT2;
constexpr double inv_sqrt2 = M_SQRT1_2;

/* floating point epsilons (e.g. used for comparison) */
constexpr float eps_float = 1.0e-5F;
constexpr double eps_double = 1.0e-14;
constexpr long double eps_long_double = 1.0e-14L;

}  // namespace mu

#endif  // MU_LITERALS_H_