Support algorithms and datastructures
[Common functionality]
Detailed Description
These are some common datastructures used in the implementation of Gecode. Maybe they can be also useful to others.In order to use them, one needs to include the appropriate header-file as described in the class and function documentation.
Modules | |
| Support for shared objects and handles | |
Classes | |
| class | Gecode::Support::BlockAllocator< T, blocksize > |
| Manage memory organized into block lists (allocator). More... | |
| class | Gecode::Support::BlockClient< T, blocksize > |
| Client for block allocator of type T. More... | |
| class | Gecode::Support::DynamicArray< T > |
| Array with arbitrary number of elements. More... | |
| class | Gecode::Support::DynamicStack< T > |
| Stack with arbitrary number of elements. More... | |
| class | Gecode::Support::LinearCongruentialGenerator< m, a, q, r > |
| Template for linear congruential generators. More... | |
| class | Gecode::Support::SentinelStack< T > |
| A simple stack that uses a sentinel element. More... | |
| class | Gecode::Support::PQueue< T, Less > |
| Simple fixed-size priority queue. More... | |
| class | Gecode::Support::StaticStack< T > |
| Stack with fixed number of elements. More... | |
Typedefs | |
| typedef LinearCongruentialGenerator< 2147483647, 48271, 44488, 3399 > | Gecode::Support::RandomGenerator |
| Default values for linear congruential generator. | |
Functions | |
| template<class Type, class LessThan> | |
| void | Gecode::Support::insertion (Type *x, int n, LessThan <) |
| Insertion sort. | |
| template<class Type, class LessThan> | |
| void | Gecode::Support::quicksort (Type *x, int n, LessThan <) |
| Quicksort. | |
Typedef Documentation
| typedef LinearCongruentialGenerator<2147483647, 48271, 44488, 3399> Gecode::Support::RandomGenerator |
Default values for linear congruential generator.
While this pseudo-random number generator is not a good source of randomness, it is still an acceptable choice for many applications. The choice of values is taken from D. E. Knuth, The Art of Computer Programming, Vol 2, Seminumerical Algorithms, 3rd edition.
Definition at line 117 of file random.icc.
Function Documentation
| void Gecode::Support::insertion | ( | Type * | x, | |
| int | n, | |||
| LessThan & | lt | |||
| ) | [inline] |
Insertion sort.
Sorts by insertion the n first elements of array x according to the order lt as instance of class LessThan. The class LessThan must implement the single member function
bool operator()(const Type&, const Type&)
The algorithm is largely based on the following book: Robert Sedgewick, Algorithms in C++, 3rd edition, 1998, Addison Wesley.
| void Gecode::Support::quicksort | ( | Type * | x, | |
| int | n, | |||
| LessThan & | lt | |||
| ) | [inline] |
Quicksort.
Sorts with quicksort the n first elements of array x according to the order lt as instance of class LessThan. The class LessThan must implement the single member function
bool operator()(const Type&, const Type&)
The algorithm is largely based on the following book: Robert Sedgewick, Algorithms in C++, 3rd edition, 1998, Addison Wesley.