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  1. /**
  2.  * @module cmem
  3.  * @author Guenther Neuwirth (0626638), Manuel Mausz (0728348)
  4.  * @brief  Memory template and memory definition for CCPU
  5.  * @date   10.05.2009
  6.  */
  7.  
  8. #ifndef CMEM_H
  9. #define CMEM_H 1
  10.  
  11. #include <vector>
  12. #include <istream>
  13. #include <sstream>
  14. #include <stdexcept>
  15. #include <boost/lexical_cast.hpp>
  16. #ifdef DEBUG
  17. # include <iostream>
  18. # include <iomanip>
  19. #endif
  20. #include "cdat.h"
  21.  
  22. /**
  23.  * @class CVectorMem
  24.  *
  25.  * Extends std::vector template for use as memory for CCPU.
  26.  */
  27. template <class T, class Allocator=std::allocator<T> >
  28. class CVectorMem
  29.   : public std::vector<T, Allocator>
  30. {
  31.   public:
  32.     using std::vector<T, Allocator>::size;
  33.     using std::vector<T, Allocator>::at;
  34.  
  35.     /**
  36.      * @method initialize
  37.      * @brief  initialize the vector with the content of istream. istream is
  38.      *         read per line. empty lines will add unitialized elements.
  39.      * @param  in  inputstream to read from
  40.      * @return void
  41.      * @globalvars none
  42.      * @exception  std::runtime_error
  43.      * @conditions none
  44.      */
  45.     void initialize(std::istream& in)
  46.     {
  47.       if (!in.good())
  48.         return;
  49.  
  50.       std::string line;
  51.       unsigned i = 0;
  52.       while (!in.eof() && in.good())
  53.       {
  54.         ++i;
  55.         std::getline(in, line);
  56.  
  57.         /* skip last line if it's empty */
  58.         if (line.empty() && in.eof())
  59.           break;
  60.  
  61.         T value;
  62.         try
  63.         {
  64.           if (!line.empty())
  65.             value = boost::lexical_cast<T>(line);
  66.         }
  67.         catch(boost::bad_lexical_cast& ex)
  68.         {
  69.           std::stringstream sstr;
  70.           sstr << "Unable to convert input (line " << i << "): " << ex.what();
  71.           throw std::runtime_error(sstr.str());
  72.         }
  73.  
  74.         push_back(value);
  75.       }
  76.     }
  77.  
  78. #if DEBUG
  79.     /**
  80.      * @method dump
  81.      * @brief  dumps contents of vector to outputstream
  82.      * @param  out  outputstream to write to
  83.      * @return void
  84.      * @globalvars none
  85.      * @exception  none
  86.      * @conditions none
  87.      */
  88.     void dump(std::ostream& out)
  89.     {
  90.       out << "[MEMORY DUMP]" << std::endl;
  91.       for(unsigned i = 0; i < size(); ++i)
  92.       {
  93.         out << "[" << std::setw(4) << std::setfill('0') << i << "]  "
  94.             << at(i) << std::endl;
  95.       }
  96.     }
  97. #endif
  98. };
  99.  
  100. /**
  101.  * @class CMem
  102.  *
  103.  * Memory definition for CCPU
  104.  */
  105. typedef CVectorMem<CDat> CMem;
  106.  
  107. #endif
  108.  
  109. /* vim: set et sw=2 ts=2: */
  110.