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  1. #include <iostream>
  2. #include <string>
  3.  
  4. struct lit {
  5.   const char *str;
  6.   lit(const char *str) : str(str) {}
  7. };
  8. std::istream& operator>>(std::istream& in, lit l)
  9. {
  10.   char c; in >> c;
  11.   while (in && *l.str) {
  12.     if (*l.str != c) in.setstate(std::ios_base::failbit);
  13.     if (isspace(*++l.str))
  14.       in >> c, l.str++;
  15.     else
  16.       c = in.get();
  17.   }
  18.   return in;
  19. }
  20.  
  21. struct HkmHeader { 
  22.     std::string version; 
  23.     int numNodes; 
  24.     int numLeaves; 
  25. }; 
  26.  
  27. struct HkmParams { 
  28.     int branchFactor; 
  29.     int maxTreeDepth; 
  30.     int desiredNumSamplesPerCluster; 
  31.     int numClusteringRuns; 
  32.     int standardization; 
  33.     int meanSubtraction; 
  34.     int noInternalLeafStats; 
  35.     int termCritMaxCount; 
  36.     float termCritEpsilon; 
  37.     int termCritType; 
  38. }; 
  39.  
  40. struct HkmFile { 
  41.     HkmHeader header; 
  42.     HkmParams params; 
  43. };
  44.  
  45. std::istream& operator>>(std::istream& in, HkmHeader& f)
  46. {
  47.   return in >> lit("class HkmTree Format:") >> f.version
  48.             >> lit("#nodes:") >> f.numNodes
  49.             >> lit("#leaves:") >> f.numLeaves;
  50. }
  51.  
  52. std::istream& operator>>(std::istream& in, HkmParams& f)
  53. {
  54.   int dummy;
  55.   return in >> lit("<HkmParams")
  56.             >> lit("branchFactor:") >>                f.branchFactor
  57.             >> lit("maxTreeDepth:") >>                f.maxTreeDepth 
  58.             >> lit("desiredNumSamplesPerCluster:") >> f.desiredNumSamplesPerCluster 
  59.             >> lit("minNumSamplesPerCluster:") >>     dummy 
  60.             >> lit("numClusteringRuns:") >>           f.numClusteringRuns
  61.             >> lit("standardization:") >>             f.standardization
  62.             >> lit("meanSubtraction:") >>             f.meanSubtraction
  63.             >> lit("noInternalLeafStats:") >>         f.noInternalLeafStats
  64.             >> lit("termCrit.maxCount:") >>           f.termCritMaxCount
  65.             >> lit("termCrit.epsilon:") >>            f.termCritEpsilon
  66.             >> lit("termCrit.type:") >>               f.termCritType
  67.             >> lit(">");
  68. }
  69.  
  70. std::istream& operator>>(std::istream& in, HkmFile& f)
  71. {
  72.   return in >> f.header >> f.params;
  73. }
  74.  
  75.  
  76. std::ostream& operator<<(std::ostream& os, HkmParams const& f)
  77. {
  78.   return os << "<HkmParams"
  79.             << "\n    branchFactor: " <<                f.branchFactor
  80.             << "\n    maxTreeDepth: " <<                f.maxTreeDepth 
  81.             << "\n    desiredNumSamplesPerCluster: " << f.desiredNumSamplesPerCluster 
  82.             << "\n    minNumSamplesPerCluster: " <<     "-1" // ?
  83.             << "\n    numClusteringRuns: " <<           f.numClusteringRuns
  84.             << "\n    standardization: " <<             f.standardization
  85.             << "\n    meanSubtraction: " <<             f.meanSubtraction
  86.             << "\n    noInternalLeafStats: " <<         f.noInternalLeafStats
  87.             << "\n    termCrit.maxCount: " <<           f.termCritMaxCount
  88.             << "\n    termCrit.epsilon: " <<            f.termCritEpsilon
  89.             << "\n    termCrit.type: " <<               f.termCritType
  90.             << "\n>";
  91. }
  92. std::ostream& operator<<(std::ostream& os, HkmHeader const& p)
  93. {
  94.   return os << "version: "   << p.version
  95.             << "\n#numNodes: "  << p.numNodes
  96.             << "\n#numLeaves: " << p.numLeaves; 
  97. }
  98. std::ostream& operator<<(std::ostream& os, HkmFile const& f)
  99. {
  100.   return os << f.header << "\n\n" << f.params;
  101. }
  102.  
  103. int main()
  104. {
  105.   HkmFile f;
  106.   if (std::cin >> f)
  107.     std::cout << f;
  108. }
  109.  
Success #stdin #stdout 0s 2856KB
comments (?)
stdin
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lass HkmTree Format: v2.1 
#nodes:  9 
#leaves: 8 
  
<HkmParams 
    branchFactor:                8 
    maxTreeDepth:                1 
    desiredNumSamplesPerCluster: 15000000 
    minNumSamplesPerCluster:     15000000 
    numClusteringRuns:           1 
    standardization:             0 
    meanSubtraction:             0 
    noInternalLeafStats:         0 
    termCrit.maxCount:           1000 
    termCrit.epsilon:            1e-006 
    termCrit.type:               3 
>
stdout
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Standard output is empty
https://ideone.com/7f7mEH
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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