testOutputIteratorAdapter.cpp

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#include <iostream>
#include <map>
#include <vector>
 
#include "DGtal/base/Common.h"
#include "DGtal/base/BasicFunctors.h"
#include "DGtal/base/OutputIteratorAdapter.h"
#include "DGtal/base/IteratorAdapter.h"
 
 
 
using namespace std;
using namespace DGtal;
 
// Functions for testing class OutputIteratorAdapter.
 
bool testPairs()
{
  int nb = 0; 
  int nbok = 0; 
 
  typedef map<string,string> Map; 
  typedef pair<string,string> Pair; 
 
  //input
  Map m; 
  m.insert( Pair("Proudhon", "Pierre-Joseph" ) ); 
  m.insert( Pair("Reclus", "Élisée" ) ); 
  m.insert( Pair("Zamenhof", "Ludwik Lejzer" ) ); 
 
  typedef vector<string> Vec; 
  Vec v; 
  v.push_back( "P-J." ); 
  v.push_back( "E." ); 
  v.push_back( "L. L." ); 
 
  //result
  Map m2; 
  m2.insert( Pair("Proudhon", "P-J." ) ); 
  m2.insert( Pair("Reclus", "E.") ); 
  m2.insert( Pair("Zamenhof", "L. L." ) ); 
 
  {//test output iterator
  trace.beginBlock ( "OutputIteratorAdapter..." );
 
  typedef OutputIteratorAdapter<Map::iterator, DGtal::functors::Pair2ndMutator<string>, string> Adapter;
  BOOST_CONCEPT_ASSERT(( boost::OutputIterator<Adapter, string> ));
  functors::Pair2ndMutator<string> f;
 
  Adapter  a( m.begin(), f ); 
 
  copy(v.begin(), v.end(), a); 
 
  bool flag; 
  flag = std::equal( m.begin(), m.end(), m2.begin() ); 
  nbok += (flag)?1:0;
  nb++;  
 
  trace.info() << "(" << nbok << "/" << nb << ")" << std::endl; 
  trace.endBlock();
  }
  
  {//test iterator
  trace.beginBlock ( "IteratorAdapter..." );
 
    functors::Pair2ndMutator<string> f;
 
    typedef IteratorAdapter<Map::iterator, functors::Pair2ndMutator<string>, string> Adapter;
  BOOST_CONCEPT_ASSERT(( boost::ForwardIterator<Adapter> ));
 
  //writting
  Adapter  a( m.begin(), f ); 
  copy(v.begin(), v.end(), a); 
  bool flag1 = std::equal( m.begin(), m.end(), m2.begin() );
 
  //reading
  Adapter aBegin( m.begin(), f);  
  Adapter aEnd( m.end(), f);  
  bool flag2 = std::equal( aBegin, aEnd, v.begin() ); 
 
  nbok += (flag1 && flag2)?1:0;
  nb++;  
 
  trace.info() << "(" << nbok << "/" << nb << ")" << std::endl; 
  trace.endBlock();
  }
  
  return (nb == nbok);
}
 
// Standard services - public :
 
int main( int argc, char** argv )
{
  trace.beginBlock ( "Testing class OutputIteratorAdapter" );
  trace.info() << "Args:";
  for ( int i = 0; i < argc; ++i )
    trace.info() << " " << argv[ i ];
  trace.info() << endl;
 
  bool res = testPairs()
  ; // && ... other tests
  trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
  trace.endBlock();
  return res ? 0 : 1;
}
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