eonc::safemath Namespace Reference

Functions
constexpr double	safe_div (double num, double denom, double fallback=0.0)
constexpr double	safe_recip (double x, double fallback=0.0)
double	safe_acos (double x)
double	safe_sqrt (double x)
double	safe_atan_ratio (double num, double denom, double fallback=0.0)

Variables
constexpr double	eps = 1e-300

Function Documentation

safe_acos()

double eonc::safemath::safe_acos ( double x )

inlinenodiscard

Definition at line 34 of file SafeMath.h.

                                                {
  return std::acos(std::clamp(x, -1.0, 1.0));
}

safe_atan_ratio()

double eonc::safemath::safe_atan_ratio ( double num, double denom, double fallback = 0.0 )

inlinenodiscard

Definition at line 42 of file SafeMath.h.

                                                                 {
  if ((denom < 0.0 ? -denom : denom) < eps) [[unlikely]] {
    return fallback;
  }
  return std::atan(num / denom);
}

safe_div()

double eonc::safemath::safe_div ( double num, double denom, double fallback = 0.0 )

inlinenodiscardconstexpr

Definition at line 21 of file SafeMath.h.

                                                                    {
  if ((denom < 0.0 ? -denom : denom) < eps) [[unlikely]] {
    return fallback;
  }
  return num / denom;
}

safe_recip()

double eonc::safemath::safe_recip ( double x, double fallback = 0.0 )

inlinenodiscardconstexpr

Definition at line 29 of file SafeMath.h.

                                                                      {
  return safe_div(1.0, x, fallback);
}

safe_sqrt()

double eonc::safemath::safe_sqrt ( double x )

inlinenodiscard

Definition at line 38 of file SafeMath.h.

                                                {
  return std::sqrt(std::max(0.0, x));
}

Variable Documentation

eps

double eonc::safemath::eps = 1e-300

inlineconstexpr

Definition at line 19 of file SafeMath.h.