Functions
bool	almostEqual (double a, double b)

template<typename Evaluator , typename Iterator >
double	min_value (const Iterator &begin, const Iterator &end, const Evaluator &evaluate)

template<typename Evaluator , typename Iterator >
double	max_value (const Iterator &begin, const Iterator &end, const Evaluator &evaluate)

template<class T >
std::vector< T >	concat (const std::vector< T > &v1, const std::vector< T > &v2)

Detailed Description

Some additions to standard library algorithms.

Function Documentation

◆ almostEqual()

bool algo::almostEqual	(	double	a,
		double	b
	)

inline

Returns true if two doubles agree within machine epsilon.

Definition at line 30 of file Algorithms.h.

 {
     constexpr double eps = std::numeric_limits<double>::epsilon();
     return std::abs(a - b) <= eps * std::max(eps, (std::abs(a) + std::abs(b)) / 2);
 }

References anonymous_namespace{PolyhedralComponents.cpp}::eps.

Referenced by VerticalLine::contains(), HorizontalLine::contains(), CustomBinAxis::equals(), FixedBinAxis::equals(), VariableBinAxis::equals(), ConstKBinAxis::equals(), anonymous_namespace{SimulationToPython.cpp}::isDefaultDirection(), pyfmt::isHexagonal(), and pyfmt::isSquare().

◆ min_value()

template<typename Evaluator , typename Iterator >

double algo::min_value	(	const Iterator &	begin,
		const Iterator &	end,
		const Evaluator &	evaluate
	)

Returns the minimum value of function evaluate as applied to the elements of an iterator range.

Definition at line 54 of file Algorithms.h.

 {
     ASSERT(begin != end);
     double ret = evaluate(*begin);
     Iterator it = begin;
     while (++it != end)
         ret = std::min(ret, evaluate(*it));
     return ret;
 }

References ASSERT.

Referenced by FormFactorWeighted::bottomZ(), IFormFactorBorn::BottomZ(), and TestMinimizer::minimize_scalar().

◆ max_value()

template<typename Evaluator , typename Iterator >

double algo::max_value	(	const Iterator &	begin,
		const Iterator &	end,
		const Evaluator &	evaluate
	)

Returns the maximum value of function evaluate as applied to the elements of an iterator range.

Definition at line 65 of file Algorithms.h.

 {
     ASSERT(begin != end);
     double ret = evaluate(*begin);
     Iterator it = begin;
     while (++it != end)
         ret = std::max(ret, evaluate(*it));
     return ret;
 }

References ASSERT.

Referenced by FormFactorWeighted::topZ(), and IFormFactorBorn::TopZ().

◆ concat()

template<class T >

std::vector< T > algo::concat	(	const std::vector< T > &	v1,
		const std::vector< T > &	v2
	)

Returns the concatenation of two std::vectors.

Definition at line 75 of file Algorithms.h.

 {
     std::vector<T> v = v1;
     v.insert(v.end(), v2.begin(), v2.end());
     return v;
 }