testCloneAndAliases.cpp File Reference

#include <cstdio>
#include <cmath>
#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/base/Clone.h"
#include "DGtal/base/Alias.h"
#include "DGtal/base/ConstAlias.h"
#include "DGtal/helpers/StdDefs.h"

Go to the source code of this file.

Typedefs
typedef MyPoint	Point

Functions
template<typename Triangle >
double	computeTriangles (int size)
int	main ()

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Author

Jacques-Olivier Lachaud (jacqu.nosp@m.es-o.nosp@m.livie.nosp@m.r.la.nosp@m.chaud.nosp@m.@uni.nosp@m.v-sav.nosp@m.oie..nosp@m.fr ) Laboratory of Mathematics (CNRS, UMR 5807), University of Savoie, France

Date

2012/07/02

This file is part of the DGtal library

Definition in file testCloneAndAliases.cpp.

Typedef Documentation

Point

typedef MyPoint Point

Definition at line 185 of file testCloneAndAliases.cpp.

Function Documentation

computeTriangles()

template<typename Triangle >

double computeTriangles

(

int

size

)

Definition at line 219 of file testCloneAndAliases.cpp.

{
  double total = 0.0;
  Point A( 0, 0 );
  for ( int yb = 0; yb < size; ++yb ) 
    for ( int xb = 0; xb < size; ++xb ) 
      {
        Point B( xb, yb );
        for ( int yc = 0; yc < size; ++yc ) 
          for ( int xc = 0; xc < size; ++xc )
            {
              Point C( xc, yc );
              Triangle T( A, B, C );
              total += T.perimeter();
            }
      }
  return total;
}

main()

int main

(

void

)

Definition at line 272 of file testCloneAndAliases.cpp.

{
  unsigned int nb = 0;
  unsigned int nbok = 0;
  trace.beginBlock ( "Number of A1 instances with standard by-value parameter passing." );
  A1 a1( 10 ); // +1/ 0
  DByValue d1( a1 ); //  +2/+1
  trace.info() << "D: d1.value() = " << d1.value() << std::endl;
  ++nb; nbok += A1::nbCreated==3 ? 1 : 0;
  ++nb; nbok += A1::nbDeleted==1 ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " nbCreated=" << A1::nbCreated 
               << " nbDeleted=" << A1::nbDeleted << std::endl; 
  trace.endBlock();
  trace.beginBlock ( "Number of A1 instances with explicit by-value parameter passing (Clone)." );
  DByClone dd1( a1 ); // +1/0
  ++nb; nbok += A1::nbCreated==4 ? 1 : 0;
  ++nb; nbok += A1::nbDeleted==1 ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " nbCreated=" << A1::nbCreated 
               << " nbDeleted=" << A1::nbDeleted << std::endl; 
  trace.endBlock();
  trace.beginBlock ( "Number of A1 instances with explicit by-reference parameter passing (Alias)." );
  EByAlias e1( a1 ); // +0/0
  ++nb; nbok += A1::nbCreated==4 ? 1 : 0;
  ++nb; nbok += A1::nbDeleted==1 ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " nbCreated=" << A1::nbCreated 
               << " nbDeleted=" << A1::nbDeleted << std::endl; 
  trace.endBlock();
  trace.beginBlock ( "Number of A1 instances with explicit by-const reference parameter passing (Alias)." );
  EByConstAlias ee1( a1 ); // +0/0
  ++nb; nbok += A1::nbCreated==4 ? 1 : 0;
  ++nb; nbok += A1::nbDeleted==1 ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " nbCreated=" << A1::nbCreated 
               << " nbDeleted=" << A1::nbDeleted << std::endl; 
  trace.endBlock();
  trace.beginBlock ( "Number of A1 instances with explicit by-value parameter passing into heap (Clone)." );
  FByCloneHeap fe1( a1 ); // +1/0
  ++nb; nbok += A1::nbCreated==5 ? 1 : 0;
  ++nb; nbok += A1::nbDeleted==1 ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " nbCreated=" << A1::nbCreated 
               << " nbDeleted=" << A1::nbDeleted << std::endl; 
  trace.endBlock();
  trace.beginBlock ( "Number of A1 instances with explicit by-value parameter passing into CowPtr (Clone)." );
  FByCloneCowPtr fe3( a1 ); // +1/0
  ++nb; nbok += A1::nbCreated==6 ? 1 : 0;
  ++nb; nbok += A1::nbDeleted==1 ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " nbCreated=" << A1::nbCreated 
               << " nbDeleted=" << A1::nbDeleted << std::endl; 
  trace.endBlock();
 
  int size = 20;
  trace.beginBlock ( "Total perimeter of triangles with by-value parameter passing." );
  double t1 = computeTriangles<TriangleByValue>( size );
  trace.info() << "Perimeter is " << t1 << std::endl;
  ++nb; nbok += Point::nbCreated == Point::nbDeleted ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " Point nbCreated=" << Point::nbCreated 
               << " nbDeleted=" << Point::nbDeleted << std::endl; 
  int nbC = Point::nbCreated;
  Point::reset();
  trace.endBlock();
  trace.beginBlock ( "Total perimeter of triangles with by-const reference parameter passing." );
  double t2 = computeTriangles<TriangleByConstReference>( size );
  trace.info() << "Perimeter is " << t2 << std::endl;
  ++nb; nbok += Point::nbCreated == Point::nbDeleted ? 1 : 0;
  ++nb; nbok += Point::nbCreated < nbC ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " Point nbCreated=" << Point::nbCreated 
               << " nbDeleted=" << Point::nbDeleted << std::endl; 
  Point::reset();
  trace.endBlock();
  trace.beginBlock ( "Total perimeter of triangles with by Clone parameter passing." );
  double t3 = computeTriangles<TriangleByClone>( size );
  trace.info() << "Perimeter is " << t3 << std::endl;
  ++nb; nbok += Point::nbCreated == Point::nbDeleted ? 1 : 0;
  ++nb; nbok += Point::nbCreated < nbC ? 1 : 0;
  trace.info() << "(" << nbok << "/" << nb << ")"
               << " Point nbCreated=" << Point::nbCreated 
               << " nbDeleted=" << Point::nbDeleted << std::endl; 
  Point::reset();
  trace.endBlock();
 
  // These two lines should not compile.
  // Clone<A1> clone1( a1 );
  // Clone<A1> clone2( clone2 );  
 
  return ( nb == nbok ) ? 0 : 1;
}

References DGtal::Trace::beginBlock(), DGtal::Trace::endBlock(), DGtal::Trace::info(), and DGtal::trace.