testBasicMathFunctions.cpp

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#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/math/BasicMathFunctions.h"
 
using namespace std;
using namespace DGtal;
 
// Functions for testing class BasicMathFunctions.
 
bool testBasicMathFunctions()
{
  unsigned int nbok = 0;
  unsigned int nb = 0;
  
  trace.beginBlock ( "Testing power by  squaring ..." );
 
  trace.info() << "power(5,4)= "<< functions::power(5,4) <<std::endl;
  nbok += (functions::power(5,4)==625) ? 1 : 0; 
  nb++;
  trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
 
 
  trace.info() << "power(5.0,4)= "<< functions::power(5.0,4) <<std::endl;
  nbok += (functions::power(5,4)==625.0) ? 1 : 0; 
  nb++;
  trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
 
 
  trace.endBlock();
  trace.beginBlock ( "Testing roundToUpperPowerOfTwo ..." );
 
  trace.info() << "roundToUpperPowerOfTwo(200)= "<< functions::roundToUpperPowerOfTwo(200) <<std::endl;
  nbok += (functions::roundToUpperPowerOfTwo(200)==256) ? 1 : 0; 
  nb++;
 
  trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
 
 
  trace.info() << "roundToUpperPowerOfTwo(1000)= "<< functions::roundToUpperPowerOfTwo(1000) <<std::endl;
  nbok += (functions::roundToUpperPowerOfTwo(1000)==1024) ? 1 : 0; 
  nb++;
  trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
 
 
  trace.info() << "power(5.0,4)= "<< functions::power(5.0,4) <<std::endl;
  nbok += (functions::power(5,4)==625.0) ? 1 : 0; 
  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 BasicMathFunctions" );
  trace.info() << "Args:";
  for ( int i = 0; i < argc; ++i )
    trace.info() << " " << argv[ i ];
  trace.info() << endl;
 
  bool res = testBasicMathFunctions(); // && ... other tests
  trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
  trace.endBlock();
  return res ? 0 : 1;
}
//                                                                           //