DGtal  0.9.3
Typedefs | Functions
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"
Include dependency graph for testCloneAndAliases.cpp:

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.

220 {
221  double total = 0.0;
222  Point A( 0, 0 );
223  for ( int yb = 0; yb < size; ++yb )
224  for ( int xb = 0; xb < size; ++xb )
225  {
226  Point B( xb, yb );
227  for ( int yc = 0; yc < size; ++yc )
228  for ( int xc = 0; xc < size; ++xc )
229  {
230  Point C( xc, yc );
231  Triangle T( A, B, C );
232  total += T.perimeter();
233  }
234  }
235  return total;
236 }
MyPointD Point
Definition: testClone2.cpp:383

◆ main()

int main ( )

Definition at line 272 of file testCloneAndAliases.cpp.

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

273 {
274  unsigned int nb = 0;
275  unsigned int nbok = 0;
276  trace.beginBlock ( "Number of A1 instances with standard by-value parameter passing." );
277  A1 a1( 10 ); // +1/ 0
278  DByValue d1( a1 ); // +2/+1
279  trace.info() << "D: d1.value() = " << d1.value() << std::endl;
280  ++nb, nbok += A1::nbCreated==3 ? 1 : 0;
281  ++nb, nbok += A1::nbDeleted==1 ? 1 : 0;
282  trace.info() << "(" << nbok << "/" << nb << ")"
283  << " nbCreated=" << A1::nbCreated
284  << " nbDeleted=" << A1::nbDeleted << std::endl;
285  trace.endBlock();
286  trace.beginBlock ( "Number of A1 instances with explicit by-value parameter passing (Clone)." );
287  DByClone dd1( a1 ); // +1/0
288  ++nb, nbok += A1::nbCreated==4 ? 1 : 0;
289  ++nb, nbok += A1::nbDeleted==1 ? 1 : 0;
290  trace.info() << "(" << nbok << "/" << nb << ")"
291  << " nbCreated=" << A1::nbCreated
292  << " nbDeleted=" << A1::nbDeleted << std::endl;
293  trace.endBlock();
294  trace.beginBlock ( "Number of A1 instances with explicit by-reference parameter passing (Alias)." );
295  EByAlias e1( a1 ); // +0/0
296  ++nb, nbok += A1::nbCreated==4 ? 1 : 0;
297  ++nb, nbok += A1::nbDeleted==1 ? 1 : 0;
298  trace.info() << "(" << nbok << "/" << nb << ")"
299  << " nbCreated=" << A1::nbCreated
300  << " nbDeleted=" << A1::nbDeleted << std::endl;
301  trace.endBlock();
302  trace.beginBlock ( "Number of A1 instances with explicit by-const reference parameter passing (Alias)." );
303  EByConstAlias ee1( a1 ); // +0/0
304  ++nb, nbok += A1::nbCreated==4 ? 1 : 0;
305  ++nb, nbok += A1::nbDeleted==1 ? 1 : 0;
306  trace.info() << "(" << nbok << "/" << nb << ")"
307  << " nbCreated=" << A1::nbCreated
308  << " nbDeleted=" << A1::nbDeleted << std::endl;
309  trace.endBlock();
310  trace.beginBlock ( "Number of A1 instances with explicit by-value parameter passing into heap (Clone)." );
311  FByCloneHeap fe1( a1 ); // +1/0
312  ++nb, nbok += A1::nbCreated==5 ? 1 : 0;
313  ++nb, nbok += A1::nbDeleted==1 ? 1 : 0;
314  trace.info() << "(" << nbok << "/" << nb << ")"
315  << " nbCreated=" << A1::nbCreated
316  << " nbDeleted=" << A1::nbDeleted << std::endl;
317  trace.endBlock();
318  trace.beginBlock ( "Number of A1 instances with explicit by-value parameter passing into CowPtr (Clone)." );
319  FByCloneCowPtr fe3( a1 ); // +1/0
320  ++nb, nbok += A1::nbCreated==6 ? 1 : 0;
321  ++nb, nbok += A1::nbDeleted==1 ? 1 : 0;
322  trace.info() << "(" << nbok << "/" << nb << ")"
323  << " nbCreated=" << A1::nbCreated
324  << " nbDeleted=" << A1::nbDeleted << std::endl;
325  trace.endBlock();
326 
327  int size = 20;
328  trace.beginBlock ( "Total perimeter of triangles with by-value parameter passing." );
329  double t1 = computeTriangles<TriangleByValue>( size );
330  trace.info() << "Perimeter is " << t1 << std::endl;
331  ++nb, nbok += Point::nbCreated == Point::nbDeleted ? 1 : 0;
332  trace.info() << "(" << nbok << "/" << nb << ")"
333  << " Point nbCreated=" << Point::nbCreated
334  << " nbDeleted=" << Point::nbDeleted << std::endl;
335  int nbC = Point::nbCreated;
336  Point::reset();
337  trace.endBlock();
338  trace.beginBlock ( "Total perimeter of triangles with by-const reference parameter passing." );
339  double t2 = computeTriangles<TriangleByConstReference>( size );
340  trace.info() << "Perimeter is " << t2 << std::endl;
341  ++nb, nbok += Point::nbCreated == Point::nbDeleted ? 1 : 0;
342  ++nb, nbok += Point::nbCreated < nbC ? 1 : 0;
343  trace.info() << "(" << nbok << "/" << nb << ")"
344  << " Point nbCreated=" << Point::nbCreated
345  << " nbDeleted=" << Point::nbDeleted << std::endl;
346  Point::reset();
347  trace.endBlock();
348  trace.beginBlock ( "Total perimeter of triangles with by Clone parameter passing." );
349  double t3 = computeTriangles<TriangleByClone>( size );
350  trace.info() << "Perimeter is " << t3 << std::endl;
351  ++nb, nbok += Point::nbCreated == Point::nbDeleted ? 1 : 0;
352  ++nb, nbok += Point::nbCreated < nbC ? 1 : 0;
353  trace.info() << "(" << nbok << "/" << nb << ")"
354  << " Point nbCreated=" << Point::nbCreated
355  << " nbDeleted=" << Point::nbDeleted << std::endl;
356  Point::reset();
357  trace.endBlock();
358 
359  // These two lines should not compile.
360  // Clone<A1> clone1( a1 );
361  // Clone<A1> clone2( clone2 );
362 
363  return ( nb == nbok ) ? 0 : 1;
364 }
void beginBlock(const std::string &keyword="")
Trace trace
Definition: Common.h:137
double endBlock()
std::ostream & info()