codac2_Matrix_addons_IntervalVector.h File Reference

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Functions
template<typename T, int R = RowsAtCompileTime, int C = ColsAtCompileTime>
	Matrix (std::initializer_list< T > l)
	Constructs an interval vector or interval row from an initializer list of floating point values.
template<int R = RowsAtCompileTime, int C = ColsAtCompileTime>
	Matrix (std::initializer_list< std::initializer_list< double > > l)
	Constructs an interval vector or interval row from an initializer list of initializer lists of doubles.
template<int R = RowsAtCompileTime, int C = ColsAtCompileTime>
	Matrix (std::initializer_list< codac2::Interval > l)
	Constructs an interval vector or interval row from an initializer list of intervals.
template<int R = RowsAtCompileTime, int C = ColsAtCompileTime>
	Matrix (int n, const double bounds[][2])
	Constructs an interval vector or interval row from a size and array of bounds.

Detailed Description

This class reuses some of the functions developed for ibex::IntervalVector. The original IBEX code is revised in modern C++ and adapted to the template structure proposed in Codac, based on the Eigen library. See ibex::IntervalVector (IBEX lib, author: Gilles Chabert)

This file is included in the declaration of Eigen::MatrixBase, thanks to the preprocessor token EIGEN_MATRIX_PLUGIN. See: https://eigen.tuxfamily.org/dox/TopicCustomizing_Plugins.html and the file codac2_matrices.h

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Date

2024

Author

Simon Rohou, Gilles Chabert

Copyright

Copyright 2023 Codac Team

License: GNU Lesser General Public License (LGPL)

Function Documentation

Matrix() [1/4]

template<typename T, int R = RowsAtCompileTime, int C = ColsAtCompileTime>

Matrix

(

std::initializer_list< T >

l

)

Constructs an interval vector or interval row from an initializer list of floating point values.

Converts each value in the list into a degenerate interval and stores it in the structure.

Precondition

The structure must be a vector or row vector (IsVectorOrRow).

Parameters

l	Initializer list of values to convert into intervals.

Precondition

The initializer list l must not be empty.

  : Matrix<codac2::Interval,R,C>(R == 1 ? 1 : l.size(), C == 1 ? 1 : l.size())
{
  assert_release(!std::empty(l));
  Index i = 0;
  for(const auto& li : l)
    (*this)[i++] = codac2::Interval(li);
}

Matrix() [2/4]

template<int R = RowsAtCompileTime, int C = ColsAtCompileTime>

Matrix

(

std::initializer_list< std::initializer_list< double > >

l

)

Constructs an interval vector or interval row from an initializer list of initializer lists of doubles.

Converts each inner list into an interval and stores it in the structure.

Precondition

The structure must be a vector or row vector (IsVectorOrRow).

Parameters

l	Initializer list of initializer lists of doubles representing intervals.

Precondition

The initializer list l must not be empty.

  : Matrix<codac2::Interval,R,C>(R == 1 ? 1 : l.size(), C == 1 ? 1 : l.size())
{
  assert_release(!std::empty(l));
  Index i = 0;
  for(const auto& li : l)
    (*this)[i++] = codac2::Interval(li);
}

Matrix() [3/4]

template<int R = RowsAtCompileTime, int C = ColsAtCompileTime>

Matrix

(

std::initializer_list< codac2::Interval >

l

)

Constructs an interval vector or interval row from an initializer list of intervals.

Copies each interval in the list into the structure.

Precondition

The structure must be a vector or row vector (IsVectorOrRow).

Parameters

l	Initializer list of intervals.

Precondition

The initializer list l must not be empty.

  : Matrix<codac2::Interval,R,C>(R == 1 ? 1 : l.size(), C == 1 ? 1 : l.size())
{
  assert_release(!std::empty(l));
  Index i = 0;
  for(const auto& li : l)
    (*this)[i++] = li;
}

Matrix() [4/4]

template<int R = RowsAtCompileTime, int C = ColsAtCompileTime>

Matrix	(	int	n,
		const double	bounds[][2] )

Constructs an interval vector or interval row from a size and array of bounds.

Initializes the structure intervals using the given array of bounds.

Precondition

The structure must be a vector or row vector (IsVectorOrRow).

Parameters

n	Number of components (must be positive).
bounds	Array of bounds, each element containing lower and upper bound as double.

Precondition

n must be greater than zero.

  : Matrix<codac2::Interval,R,C>(R == 1 ? 1 : n, C == 1 ? 1 : n, bounds)
{
  assert_release(n > 0);
}