print.h

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// ========================================================================= //
// This file is part of MyraMath, copyright (c) 2014-2019 by Ryan A Chilton  //
// and distributed by MyraCore, LLC. See LICENSE.txt for license terms.      //
// ========================================================================= //

#ifndef MYRAMATH_EXPRESSION_PRINT_H
#define MYRAMATH_EXPRESSION_PRINT_H

#include <myramath/expression/Index.h>
#include <myramath/expression/Expression.h>

#include <iostream>

namespace myra {

template<class Number> std::ostream& operator << (std::ostream& out, const Expression<1,Number>& e)
  {
  Index<1> index = e.size();
  int N = index[0];
  out << "size " << N << " arity-1 Expression of " << typestring<Number>() << ": " << std::endl;
  out << "[ ";  
  for (int n = 0; n < N; ++n)
    out << e.evaluate(make_Index(n)) << " ";
  out << "]" << std::endl;  
  return out;
  }

template<class Number> std::ostream& operator << (std::ostream& out, const Expression<2,Number>& e)
  {
  Index<2> index = e.size();
  int I = index[0];
  int J = index[1];
  out << "size " << I << " by " << J << " arity-2 Expression of " << typestring<Number>() << ": " << std::endl;
  for (int i = 0; i < I; ++i)
    {
    out << "[ ";
    for (int j = 0; j < J; ++j)
      out << e.evaluate(make_Index(i,j)) << " ";
    out << "]" << std::endl;
    }
  return out;
  }

template<int Arity> std::ostream& operator << (std::ostream& out, const Index<Arity>& index)
  {
  out << "[ ";
  int N = Arity;
  for (int n = 0; n < N; ++n)
    out << index[n] << " ";
  out << "]";
  return out;
  }

} // namespace myra

#endif