LEMON/LEMON-main Changeset - r160:b1bd0c2a7f57

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Changeset - r160:b1bd0c2a7f57

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r160:b1bd0c2a7f57

Mon, 26 May 2008 13:31:41

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kpeter (Peter Kovacs)
kpeter@inf.elte.hu

Improved documentation for counters

0 1 0

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1 file changed with 81 insertions and 15 deletions:

lemon/counter.h

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lemon/counter.h

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@@ -5,177 +5,243 @@
 		 * Copyright (C) 2003-2008
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_COUNTER_H
 		#define LEMON_COUNTER_H
 		#include <string>
 		#include <iostream>
 		///\ingroup timecount
 		///\file
 		///\brief Tools for counting steps and events
 		namespace lemon
+		{
 		  template<class P> class _NoSubCounter;
 		  template<class P>
 		  class _SubCounter
+		  {
 		    P &_parent;
 		    std::string _title;
 		    std::ostream &_os;
 		    int count;
 		  public:
 		    typedef _SubCounter<_SubCounter<P> > SubCounter;
 		    typedef _NoSubCounter<_SubCounter<P> > NoSubCounter;
 		    _SubCounter(P &parent)
 		      : _parent(parent), _title(), _os(std::cerr), count(0) {}
 		    _SubCounter(P &parent,std::string title,std::ostream &os=std::cerr)
 		      : _parent(parent), _title(title), _os(os), count(0) {}
 		    _SubCounter(P &parent,const char *title,std::ostream &os=std::cerr)
 		      : _parent(parent), _title(title), _os(os), count(0) {}
 		    ~_SubCounter() {
 		      _os << _title << count <<std::endl;
 		      _parent+=count;
+		    }
 		    _SubCounter &operator++() { count++; return *this;}
 		    int operator++(int) { return count++; }
 		    _SubCounter &operator--() { count--; return *this;}
 		    int operator--(int) { return count--; }
 		    _SubCounter &operator+=(int c) { count+=c; return *this;}
 		    _SubCounter &operator-=(int c) { count-=c; return *this;}
 		    void reset(int c=0) {count=c;}
 		    operator int() {return count;}
 		  };
 		  template<class P>
 		  class _NoSubCounter
+		  {
 		    P &_parent;
 		  public:
 		    typedef _NoSubCounter<_NoSubCounter<P> > SubCounter;
 		    typedef _NoSubCounter<_NoSubCounter<P> > NoSubCounter;
 		    _NoSubCounter(P &parent) :_parent(parent) {}
 		    _NoSubCounter(P &parent,std::string,std::ostream &)
 		      :_parent(parent) {}
 		    _NoSubCounter(P &parent,std::string)
 		      :_parent(parent) {}
 		    _NoSubCounter(P &parent,const char *,std::ostream &)
 		      :_parent(parent) {}
 		    _NoSubCounter(P &parent,const char *)
 		      :_parent(parent) {}
 		    ~_NoSubCounter() {}
 		    _NoSubCounter &operator++() { ++_parent; return *this;}
 		    int operator++(int) { _parent++; return 0;}
 		    _NoSubCounter &operator--() { --_parent; return *this;}
 		    int operator--(int) { _parent--; return 0;}
 		    _NoSubCounter &operator+=(int c) { _parent+=c; return *this;}
 		    _NoSubCounter &operator-=(int c) { _parent-=c; return *this;}
 		    void reset(int) {}
 		    void reset() {}
 		    operator int() {return 0;}
 		  };
 		  /// \addtogroup timecount
 		  /// @{
 		  ///A counter class
 		  ///This class makes it easier to count certain events. You can increment
 		  ///or decrement the counter using operator++ and operator--.
 		  ///A report is automatically printed on destruction.
 		  ///\todo More doc
 		  /// This class makes it easier to count certain events (e.g. for debug
 		  /// reasons).
 		  /// You can increment or decrement the counter using \c operator++,
 		  /// \c operator--, \c operator+= and \c operator-=. You can also
 		  /// define subcounters for the different phases of the algorithm or
 		  /// for different types of operations.
 		  /// A report containing the given title and the value of the counter
 		  /// is automatically printed on destruction.
 		  ///
 		  /// The following example shows the usage of counters and subcounters.
 		  /// \code
 		  /// // Bubble sort
 		  /// std::vector<T> v;
 		  /// ...
 		  /// Counter op("Operations: ");
 		  /// Counter::SubCounter as(op, "Assignments: ");
 		  /// Counter::SubCounter co(op, "Comparisons: ");
 		  /// for (int i = v.size()-1; i > 0; --i) {
 		  ///   for (int j = 0; j < i; ++j) {
 		  ///     if (v[j] > v[j+1]) {
 		  ///       T tmp = v[j];
 		  ///       v[j] = v[j+1];
 		  ///       v[j+1] = tmp;
 		  ///       as += 3;          // three assignments
 		  ///     }
 		  ///     ++co;               // one comparison
 		  ///   }
 		  /// }
 		  /// \endcode
 		  ///
 		  /// This code prints out something like that:
 		  /// \code
 		  /// Comparisons: 45
 		  /// Assignments: 57
 		  /// Operations: 102
 		  /// \endcode
 		  ///
 		  /// \sa NoCounter
 		  class Counter
+		  {
 		    std::string _title;
 		    std::ostream &_os;
 		    int count;
 		  public:
 		    ///\e
-		    ///\todo document please.
+		    /// SubCounter class
 		    /// This class can be used to setup subcounters for a \ref Counter
 		    /// to have finer reports. A subcounter provides exactly the same
 		    /// operations as the main \ref Counter, but it also increments and
 		    /// decrements the value of its parent.
 		    /// Subcounters can also have subcounters.
 		    ///
 		    /// The parent counter must be given as the first parameter of the
 		    /// constructor. Apart from that a title and an \c ostream object
 		    /// can also be given just like for the main \ref Counter.
 		    ///
 		    /// A report containing the given title and the value of the
 		    /// subcounter is automatically printed on destruction. If you
 		    /// would like to turn off this report, use \ref NoSubCounter
 		    /// instead.
 		    ///
 		    /// \sa NoSubCounter
 		    typedef _SubCounter<Counter> SubCounter;
 		    ///\e
-		    ///\todo document please.
+		    /// SubCounter class without printing report on destruction
 		    /// This class can be used to setup subcounters for a \ref Counter.
 		    /// It is the same as \ref SubCounter but it does not print report
 		    /// on destruction. (It modifies the value of its parent, so 'No'
 		    /// only means 'do not print'.)
 		    ///
 		    /// Replacing \ref SubCounter "SubCounter"s with \ref NoSubCounter
 		    /// "NoSubCounter"s makes it possible to turn off reporting
 		    /// subcounter values without actually removing the definitions
 		    /// and the increment or decrement operators.
 		    ///
 		    /// \sa SubCounter
 		    typedef _NoSubCounter<Counter> NoSubCounter;
-		    ///\e
+		    /// Constructor.
 		    Counter() : _title(), _os(std::cerr), count(0) {}
-		    ///\e
+		    /// Constructor.
 		    Counter(std::string title,std::ostream &os=std::cerr)
 		      : _title(title), _os(os), count(0) {}
-		    ///\e
+		    /// Constructor.
 		    Counter(const char *title,std::ostream &os=std::cerr)
 		      : _title(title), _os(os), count(0) {}
 		    ///Destructor. Prints the given title and the value of the counter.
 		    ~Counter() {
 		      _os << _title << count <<std::endl;
+		    }
 		    ///\e
 		    Counter &operator++() { count++; return *this;}
 		    ///\e
 		    int operator++(int) { return count++;}
 		    ///\e
 		    Counter &operator--() { count--; return *this;}
 		    ///\e
 		    int operator--(int) { return count--;}
 		    ///\e
 		    Counter &operator+=(int c) { count+=c; return *this;}
 		    ///\e
 		    Counter &operator-=(int c) { count-=c; return *this;}
-		    ///\e
+		    /// Resets the counter to the given value.
 		    void reset(int c=0) {count=c;}
-		    ///\e
+		    /// Returns the value of the counter.
 		    operator int() {return count;}
 		  };
-		  ///'Do nothing' version of \ref Counter
+		  /// 'Do nothing' version of Counter.
-		  ///'Do nothing' version of \ref Counter.
+		  /// This class can be used in the same way as \ref Counter however it
 		  /// does not count at all and does not print report on destruction.
 		  ///
 		  /// Replacing a \ref Counter with a \ref NoCounter makes it possible
 		  /// to turn off all counting and reporting (SubCounters should also
 		  /// be replaced with NoSubCounters), so it does not affect the
 		  /// efficiency of the program at all.
 		  ///
 		  ///\sa Counter
 		  class NoCounter
+		  {
 		  public:
 		    typedef _NoSubCounter<NoCounter> SubCounter;
 		    typedef _NoSubCounter<NoCounter> NoSubCounter;
 		    NoCounter() {}
 		    NoCounter(std::string,std::ostream &) {}
 		    NoCounter(const char *,std::ostream &) {}
 		    NoCounter(std::string) {}
 		    NoCounter(const char *) {}
 		    NoCounter &operator++() { return *this; }
 		    int operator++(int) { return 0; }
 		    NoCounter &operator--() { return *this; }
 		    int operator--(int) { return 0; }
 		    NoCounter &operator+=(int) { return *this;}
 		    NoCounter &operator-=(int) { return *this;}
 		    void reset(int) {}
 		    void reset() {}
 		    operator int() {return 0;}
 		  };
 		  ///@}
+		}
 		#endif

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