87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
// tasmet_types.h
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//
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// Author: J.A. de Jong
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//
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// Description:
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// Typedefs and namespace pollution for stuff that is almost always
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// needed.
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//////////////////////////////////////////////////////////////////////
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#pragma once
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#ifndef TASMET_TYPES_H
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#define TASMET_TYPES_H
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#include <type_traits>
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// We require C++
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#ifndef __cplusplus
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#error The c++ compiler should be used.
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#endif
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// Some header files I (almost) always need
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#include <vector> // C++ std vector
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#include <string> // C++ string class
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#include <complex>
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#include <armadillo> // Our linear algebra package
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typedef size_t us; /* Size type I always use */
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#define fillwith arma::fill // Fill vector or matrix with ...
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// To change the whole code to 32-bit floating points, change this to
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// float.
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#if TASMET_FLOAT == 32
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typedef float d; /* Shortcut for double */
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#elif TASMET_FLOAT == 64
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typedef double d; /* Shortcut for double */
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#else
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static_assert(false,"TASMET_FLOAT should be either 32 or 64");
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#endif
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typedef std::complex<d> c; /* Shortcut for c++ complex number */
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using arma::abs;
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using std::string; /* C++ Strings */
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using std::vector; // C++ Vectors
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/* Armadillo functions and objects we often need */
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using arma::sin;
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using arma::cos;
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using arma::exp;
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using arma::ones;
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using arma::zeros;
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using arma::eye;
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using arma::inv;
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using arma::det;
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using arma::log_det;
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using arma::norm;
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using arma::span;
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using arma::linspace;
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using arma::diagmat;
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// Constants
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// I need these numbers so often, that they can be in the global namespace
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const c I(0,1); //Complex unity
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const c sqI=sqrt(I);
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const d sq2=sqrt(2.0);
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const c sqmI=sqrt(-1.0*I);
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const c minI(0,-1); //Minus complex unity
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const d number_pi=arma::datum::pi; // The number 3.14159265359..
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template<size_t i>
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using vdi = arma::Col<d>::fixed<i>;
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template<size_t i>
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using vci = arma::Col<c>::fixed<i>;
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typedef arma::Col<d> vd; /* Column vector of doubles */
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typedef arma::Col<c> vc; /* Column vector of complex numbers */
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typedef arma::Col<us> vus; /* Column vector of unsigned integers */
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typedef arma::Mat<d> dmat; /* (Dense) Matrix of doubles */
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typedef arma::Mat<c> cmat; /* (Dense) matrix of complex numbers */
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typedef arma::SpMat<d> sdmat; /* Sparse matrix of doubles */
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#endif // TASMET_TYPES_H
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//////////////////////////////////////////////////////////////////////
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