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BigFloat.hpp
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/*
* File: BigFloat.hpp
* Author: matthewsupernaw
*
* Created on January 22, 2014, 3:20 PM
*/
#ifndef BIGFLOAT_HPP
#define BIGFLOAT_HPP
#include "support/ttmath-0.9.3/ttmath/ttmathbig.h"
#include "support/ttmath-0.9.3/ttmath/ttmath.h"
#ifndef BIGFLOAT_MANTISSA_BITS
#define BIGFLOAT_MANTISSA_BITS 64
#endif
#ifndef BIGFLOAT_EXPONENT_BITS
#define BIGFLOAT_EXPONENT_BITS 128
#endif
namespace ad {
/*!
* A base class for all ATL types.
*/
template<class T>
class BigFloat {
public:
ttmath::Big<TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > value_m;
/**
* Constructor
*/
BigFloat() : value_m(0) {
}
/**
* Constructor
*/
BigFloat(T value) : value_m(value) {
}
/**
* Constructor
*/
BigFloat(std::string value) : value_m(value) {
}
/**
* Copy constructor.
*
* @param orig
*/
BigFloat(const BigFloat& orig) : value_m(orig.value_m) {
}
operator T() {
return this->ToValue(this->ToString());
}
/*member functions*/
/**
* Assignment operator.
*
* @param val
* @return
*/
BigFloat<T>& operator=(const T& val) {
this->value_m = val;
return *this;
}
/**
* Addition operator.
* @param rhs
* @return
*/
const BigFloat<T> operator+(const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = this->value_m + rhs.value_m;
return ret;
}
/**
* Addition operator.
* @param rhs
* @return
*/
const BigFloat<T> operator+(const T& rhs) {
BigFloat<T> ret;
ret.value_m = this->value_m + rhs;
return ret;
}
/**
* Subtraction operator.
*
* @param rhs
* @return
*/
const BigFloat<T> operator-(const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = this->value_m - rhs.value_m;
return ret;
}
/**
* Subtraction operator.
*
* @param rhs
* @return
*/
const BigFloat<T> operator-(const T& rhs) {
BigFloat<T> ret;
ret.value_m = this->value_m - rhs;
return ret;
}
/**
* Multiplication operator.
*
* @param rhs
* @return
*/
const BigFloat<T> operator*(const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = this->value_m * rhs.value_m;
return ret;
}
/**
* Multiplication operator.
*
* @param rhs
* @return
*/
const BigFloat<T> operator*(const T& rhs) {
BigFloat<T> ret;
ret.value_m = this->value_m * rhs;
return ret;
}
/**
* Division operator.
*
* @param rhs
* @return
*/
const BigFloat<T> operator/(const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = this->value_m / rhs.value_m;
return ret;
}
/**
* Division operator.
*
* @param rhs
* @return
*/
const BigFloat<T> operator/(const T& rhs) {
BigFloat<T> ret;
ret.value_m = this->value_m / rhs;
return ret;
}
/**
* Addition assignment operator.
*
* @param val
* @return
*/
BigFloat<T>& operator+=(const T& val) {
this->value_m += val;
return *this;
}
/**
* Subtraction assignment operator.
* @param val
* @return
*/
BigFloat<T>& operator-=(const T& val) {
this->value_m -= val;
return *this;
}
/**
* Multiplication assignment operator.
*
* @param val
* @return
*/
BigFloat<T>& operator*=(const T& val) {
this->value_m *= val;
return *this;
}
/**
* Division assignment operator.
*
* @param val
* @return
*/
BigFloat<T>& operator/=(const T& val) {
this->value_m /= val;
return *this;
}
/**
* Assignment operator.
*
* @param rhs
* @return
*/
BigFloat<T>& operator=(const BigFloat<T>& rhs) {
this->value_m = rhs.value_m;
return *this;
}
/**
* Addition assignment operator.
*
* @param rhs
* @return
*/
BigFloat<T>& operator+=(const BigFloat<T>& rhs) {
this->value_m += rhs.value_m;
return *this;
}
/**
* Subtraction assignment operator.
*
* @param rhs
* @return
*/
BigFloat<T>& operator-=(const BigFloat<T>& rhs) {
this->value_m -= rhs.value_m;
return *this;
}
/**
* Multiplication assignment operator.
* @param rhs
* @return
*/
BigFloat<T>& operator*=(const BigFloat<T>& rhs) {
this->value_m *= rhs.value_m;
return *this;
}
/**
* Division assignment operator.
*
* @param rhs
* @return
*/
BigFloat<T>& operator/=(const BigFloat<T>& rhs) {
this->value_m /= rhs.value_m;
return *this;
}
// /**
// * Division assignment operator.
// *
// * @param rhs
// * @return
// */
// unsigned long operator %(const BigFloat<T>& rhs)const {
// return this->value_m.Mod(rhs);
// }
//
// /**
// * Division assignment operator.
// *
// * @param rhs
// * @return
// */
// unsigned long operator %(const T& rhs) {
// ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > temp = rhs;
// unsigned long ret = this->value_m.Mod(temp);
// return ret;
// }
/**
* Prefix increment.
*
* @return
*/
BigFloat<T>& operator++() {
this->value_m++;
return *this;
}
/**
* Suffix increment.
* @param i
* @return
*/
BigFloat<T>& operator++(int i) {
++this->value_m;
return *this;
}
/**
* Prefix decrement.
*
* @return
*/
BigFloat<T>& operator--() {
this->value_m--;
return *this;
}
/**
* Suffix decrement.
*
* @param i
* @return
*/
BigFloat<T>& operator--(int i) {
--this->value_m;
return *this;
}
std::string ToString() const {
std::stringstream ss;
ss << this->value_m;
return ss.str();
}
T ToValue() {
std::istringstream ss;
ss << this->value_m;
T result;
return ss >> result ? result : 0;
}
//Friends
// relational operators
template<class TT> friend const int operator==(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator!=(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator<(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator>(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator<=(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator>=(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const long operator %(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator==(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator!=(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator<(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator>(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator<=(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator>=(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const long operator%(const TT &lhs, const BigFloat<TT>& rhs);
template<class TT> friend const int operator==(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const int operator!=(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const int operator<(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const int operator>(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const int operator<=(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const int operator>=(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const int operator%(const BigFloat<TT>& lhs, const TT &rhs);
// binary
template<class TT> friend const BigFloat<TT> operator-(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const BigFloat<TT> operator/(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const BigFloat<TT> operator+(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const BigFloat<TT> operator*(const BigFloat<TT>& lhs, const BigFloat<TT>& rhs);
template<class TT> friend const BigFloat<TT> operator-(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const BigFloat<TT> operator/(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const BigFloat<TT> operator+(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const BigFloat<TT> operator*(TT lhs, const BigFloat<TT>& rhs);
template<class TT> friend const BigFloat<TT> operator-(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const BigFloat<TT> operator/(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const BigFloat<TT> operator+(const BigFloat<TT>& lhs, TT rhs);
template<class TT> friend const BigFloat<TT> operator*(const BigFloat<TT>& lhs, TT rhs);
protected:
ttmath::Big < 1, 2 > GetValue() const {
return value_m;
}
private:
// template<class T>
T ToValue(const std::string &val) const {
std::istringstream ss(val);
// ss<<val;
T result;
return ss >> result ? result : 0;
}
};
/*!
* Equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator==(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
return (lhs.GetValue() == rhs.GetValue());
}
/*!
* Not equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator!=(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
return (lhs.GetValue() != rhs.GetValue());
}
/*!
* Less than comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator<(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
return (lhs.GetValue() < rhs.GetValue());
}
/*!
* Greater than comparison operator.
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator>(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
return (lhs.GetValue() > rhs.GetValue());
}
/*!
* Less than equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator<=(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
return (lhs.GetValue() <= rhs.GetValue());
}
/*!
* Greater than equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator>=(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
return (lhs.GetValue() >= rhs.GetValue());
}
template<class T> const long operator %(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
return lhs.value_m.Mod(rhs.value_m);
}
/*!
* Equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator==(T lhs, const BigFloat<T>& rhs) {
return (lhs == rhs.GetValue());
}
/*!
* Not equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator!=(T lhs, const BigFloat<T>& rhs) {
return (lhs != rhs.GetValue());
}
/*!
* Less than comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator<(T lhs, const BigFloat<T>& rhs) {
return (lhs < rhs.GetValue());
}
/*!
* Greater than comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator>(T lhs, const BigFloat<T>& rhs) {
return (lhs > rhs.GetValue());
}
/*!
* Less than equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator<=(T lhs, const BigFloat<T>& rhs) {
return (lhs <= rhs.GetValue());
}
/*!
* Greater than equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator>=(T lhs, const BigFloat<T>& rhs) {
return (lhs >= rhs.GetValue());
}
template<class T> const long operator %(const T& lhs, const BigFloat<T>& rhs) {
return lhs % rhs.ToValue();
}
/*!
* Equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator==(const BigFloat<T>& lhs, T rhs) {
return (lhs.GetValue() == rhs);
}
/*!
* Not equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator!=(const BigFloat<T>& lhs, T rhs) {
return (lhs.GetValue() != rhs);
}
/*!
* Less than comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator<(const BigFloat<T>& lhs, T rhs) {
return (lhs.GetValue() < rhs);
}
/*!
* Greater than comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator>(const BigFloat<T>& lhs, T rhs) {
return (lhs.GetValue() > rhs);
}
/*!
* Less than equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator<=(const BigFloat<T>& lhs, T rhs) {
return (lhs.GetValue() <= rhs);
}
/*!
* Greater than equal to comparison operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> inline const int operator>=(const BigFloat<T>& lhs, T rhs) {
return (lhs.GetValue() >= rhs);
}
template<class T> const int operator %(const BigFloat<T>& lhs, const T& rhs) {
ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > temp(rhs);
ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > ltemp(lhs.value_m);
return ltemp.Mod(temp);
}
// binary
/*!
* Outside class subtraction operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator-(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = lhs.value_m - rhs.value_m;
return ret;
}
/*!
* Outside class addition operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator+(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = lhs.value_m + rhs.value_m;
return ret;
}
/*!
* Outside class division operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator/(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = lhs.value_m / rhs.value_m;
return ret;
}
/*!
* Outside class multiplication operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator*(const BigFloat<T>& lhs, const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = lhs.value_m * rhs.value_m;
return ret;
}
/*!
* Outside class subtraction operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator-(T lhs, const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (lhs) - rhs.value_m;
return ret;
}
/*!
* Outside class addition operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator+(T lhs, const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (lhs) + rhs.value_m;
return ret;
}
/*!
* Outside class division operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator/(T lhs, const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (lhs) / rhs.value_m;
return ret;
}
/*!
* Outside class multiplication operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator*(T lhs, const BigFloat<T>& rhs) {
BigFloat<T> ret;
ret.value_m = ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (lhs) * rhs.value_m;
return ret;
}
/*!
* Outside class subtraction operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator-(const BigFloat<T>& lhs, T rhs) {
BigFloat<T> ret;
ret.value_m = lhs.value_m - ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (rhs);
return ret;
}
/*!
* Outside class addition operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator+(const BigFloat<T>& lhs, T rhs) {
BigFloat<T> ret;
ret.value_m = lhs.value_m + ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (rhs);
return ret;
}
/*!
* Outside class division operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator/(const BigFloat<T>& lhs, T rhs) {
BigFloat<T> ret;
ret.value_m = lhs.value_m / ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (rhs);
return ret;
}
/*!
* Outside class multiplication operator.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const BigFloat<T> operator*(const BigFloat<T>& lhs, T rhs) {
BigFloat<T> ret;
ret.value_m = lhs.value_m * ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (rhs);
return ret;
}
template<class T >
std::ostream & operator<<(std::ostream &out, BigFloat<T> const &t) {
out << t.value_m;
return out;
}
}
namespace std {
//Math Overloads
/*!
* Returns the arc tangent of the BigFloat number val.
*
* @param val
* @return
*/
template<class T> const ad::BigFloat<T> atan(const ad::BigFloat<T> &val) {
ad::BigFloat<T> ret;
ret.value_m = ATan(val.value_m);
return ret;
}
/*!
* Compute arc tangent with two parameters.
*
* @param val
* @return
*/
template<class T> const ad::BigFloat<T> atan2(const ad::BigFloat<T> &lhs, const ad::BigFloat<T> &rhs) {
ad::BigFloat<T> ret;
ret.value_m = ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (2) *
ATan(lhs.value_m / ((rhs.value_m^ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (2) +
lhs.value_m^ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (2))^ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (.5) + rhs.value_m));
return ret;
}
/*!
* Compute arc tangent with two parameters.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const ad::BigFloat<T> atan2(T lhs, const ad::BigFloat<T> &rhs) {
ad::BigFloat<T> ret;
ret.value_m = ATan2(ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (lhs), rhs.value_m);
return ret;
}
/*!
* Compute arc tangent with two parameters.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const ad::BigFloat<T> atan2(const ad::BigFloat<T> &lhs, T rhs) {
ad::BigFloat<T> ret;
ret.value_m = ATan2(lhs.value_m, ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (rhs));
return ret;
}
/*!
* Returns the cosine of the BigFloat number val.
*
* @param val
* @return
*/
template<class T> const ad::BigFloat<T> cos(const ad::BigFloat<T> &val) {
ad::BigFloat<T> ret;
ret.value_m = Cos(val.value_m);
return ret;
}
/*!
* Compute exponential function for val.
*
* @param val
* @return
*/
template<class T> const ad::BigFloat<T> exp(const ad::BigFloat<T> &val) {
ad::BigFloat<T> ret;
ret.value_m = Exp(val.value_m);
return ret;
}
template<class T> const ad::BigFloat<T> mfexp(const ad::BigFloat<T> & x) {
T b = T(60);
if (x <= b && x >= T(-1) * b) {
return std::exp(x);
} else if (x > b) {
return std::exp(b)*(T(1.) + T(2.) * (x - b)) / (T(1.) + x - b);
} else {
return std::exp(T(-1) * b)*(T(1.) - x - b) / (T(1.) + T(2.) * (T(-1) * x - b));
}
}
/*!
* Compute natural logarithm of val.
* @param val
* @return
*/
template<class T> const ad::BigFloat<T> log(const ad::BigFloat<T> &val) {
ad::BigFloat<T> ret;
ret.value_m = Ln(val.value_m);
return ret;
}
/*!
* Compute natural common logarithm of val.
* @param val
* @return
*/
template<class T> const ad::BigFloat<T> log10(const ad::BigFloat<T> &val) {
ad::BigFloat<T> ret;
ret.value_m = Log(val.value_m, ttmath::Big < TTMATH_BITS(BIGFLOAT_MANTISSA_BITS), TTMATH_BITS(BIGFLOAT_EXPONENT_BITS) > (10));
return ret;
}
/*
float power(float x, int y)
{
float temp;
if( y == 0)
return 1;
temp = power(x, y/2);
if (y%2 == 0)
return temp*temp;
else
{
if(y > 0)
return x*temp*temp;
else
return (temp*temp)/x;
}
}
*/
/*!
* Raise to power.
*
* @param lhs
* @param rhs
* @return
*/
template<class T> const ad::BigFloat<T> pow(const ad::BigFloat<T> &x, const ad::BigFloat<T> &y) {
if (y == T(0))
return 1;
ad::BigFloat<T> temp(pow(x, y*T(.5)));
if (y % T(2.0) == 0)
return temp * temp;
else {
if (y > T(0))
return x * temp * temp;
else
return (temp * temp) / x;
}
// ad::BigFloat<T> ret;
// // ad::BigFloat<T> rt = rhs;
// //
// // if (rhs.value_m == ttmath::Big<TTMATH_BITS(BIGFLOAT_MANTISSA),TTMATH_BITS(BIGFLOAT_EXPONENT) > (0.0)) {
// // ret.value_m = ttmath::Big<TTMATH_BITS(BIGFLOAT_MANTISSA),TTMATH_BITS(BIGFLOAT_EXPONENT) > (1);
// // return ret;
// // }
// // ret = std::pow(lhs, rhs / ad::BigFloat<T> (2.0));
// //
// // if ((rt.value_m.Mod(ttmath::Big<TTMATH_BITS(BIGFLOAT_MANTISSA),TTMATH_BITS(BIGFLOAT_EXPONENT) > (2.0))) == 0) {
// // return ret *ret;
// // } else {
// //
// // if (rhs > ad::BigFloat<T> (0)) {
// // return lhs * ret*ret;
// // } else {
// //
// // return (ret * ret) / rhs;
// // }
// // }
//
//
// ret.value_m = lhs.value_m;
// ret.value_m.PowFrac(rhs.value_m);
// return ret;
}
/*!
* Raise to power.
*
* @param lhs