common.hpp
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	#ifndef SPECMICP_COMMON_HPP
	#define SPECMICP_COMMON_HPP

	#include <Eigen/Core>
	#include "boost/range/irange.hpp"

	namespace specmicp {

	//! type of an index
	using index_t = std::ptrdiff_t;
	using uindex_t = std::size_t;
	//! type of a scalar
	using scalar_t = double;

	// linear algebra
	//! A vector
	using Vector = Eigen::Matrix<scalar_t, Eigen::Dynamic, 1>;
	//! A matrix
	using Matrix = Eigen::Matrix<scalar_t, Eigen::Dynamic, Eigen::Dynamic>;

	//! \brief Range
	//!
	//! used to access all species of a certain types
	using range_t = boost::iterator_range<boost::range_detail::integer_iterator<index_t>>;


	// constants

	//! Id of an equation that is not an equation
	const index_t no_equation = -1;
	//! Id of a non-existant species
	const index_t no_species = -1;

	} // namespace specmicp


	// macros
	// ------

	#ifdef SPECMICP_NO_DEBUG
	#define specmicp_assert
	#else
	#define specmicp_assert(x) assert(x)
	#endif // SPECMICP_NO_DEBUG



	#endif // SPECMICP_COMMON_HPP