testModuloComputer.cpp

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#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/arithmetic/ModuloComputer.h"
#include "DGtal/kernel/NumberTraits.h"
 
 
using namespace std;
using namespace DGtal;
 
// Functions for testing class ModuloComputer.
 
bool testModuloComputer()
{
  unsigned int nbok = 0;
  unsigned int nb = 0;
  
  trace.beginBlock ( "Testing block ..." );
 
  //Construct an arithmetic modulo 15
 
  
  ModuloComputer< int > modular(15);
  typedef NumberTraits< int >::UnsignedVersion myUnsignedInteger;
  myUnsignedInteger a;
  
  a = modular.cast( 2 );   //a contains the value 2
  nbok += (a == 2) ? 1 : 0;
  nb++;
  trace.info() << "a= "<<a<<std::endl;
 
  a = modular.cast( -1 );  //a contains the value 14
  nbok += (a== 14) ? 1 : 0;
  nb++;
  trace.info() << "a= "<<a<<std::endl;
 
  modular.increment( a ); //a contains the value 0
  nbok += (a== 0) ? 1 : 0;
  nb++;  
  trace.info() << "a= "<<a<<std::endl;
 
  nbok += 1;
  nb++;
  trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
  trace.endBlock();
  
  return nbok == nb;
}
 
// Standard services - public :
 
int main( int argc, char** argv )
{
  trace.beginBlock ( "Testing class ModuloComputer" );
  trace.info() << "Args:";
  for ( int i = 0; i < argc; ++i )
    trace.info() << " " << argv[ i ];
  trace.info() << endl;
 
  bool res = testModuloComputer(); // && ... other tests
  trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
  trace.endBlock();
  return res ? 0 : 1;
}
//                                                                           //