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[711] | 1 | // -*- mode:C++ -*- |
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| 2 | #ifndef HUGO_BENCH_TEST_H |
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| 3 | #define HUGO_BENCH_TEST_H |
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| 4 | |
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| 5 | #include<vector> |
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| 6 | |
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| 7 | ///An experimental typedef factory |
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| 8 | #define GRAPH_TYPEDEF_FACTORY(Graph) \ |
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| 9 | typedef typename Graph:: Node Node;\ |
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| 10 | typedef typename Graph:: NodeIt NodeIn;\ |
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| 11 | typedef typename Graph:: Edge Edge;\ |
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| 12 | typedef typename Graph:: EdgeIt EdgeIt;\ |
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| 13 | typedef typename Graph:: InEdgeIt InEdgeIt;\ |
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| 14 | typedef typename Graph::OutEdgeIt OutEdgeIt; |
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| 15 | |
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| 16 | #define GRAPH_TYPEDEF_FACTORY_NOTYPENAME(Graph) \ |
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| 17 | typedef Graph:: Node Node;\ |
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| 18 | typedef Graph:: NodeIt NodeIn;\ |
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| 19 | typedef Graph:: Edge Edge;\ |
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| 20 | typedef Graph:: EdgeIt EdgeIt;\ |
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| 21 | typedef Graph:: InEdgeIt InEdgeIt;\ |
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| 22 | typedef Graph::OutEdgeIt OutEdgeIt; |
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| 23 | |
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| 24 | |
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| 25 | ///A primitive primtest |
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| 26 | bool isPrim(int n) |
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| 27 | { |
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| 28 | if(n%2) { |
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| 29 | for(int k=3;n/k>=k;k+=2) |
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| 30 | if(!(n%k)) return false; |
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| 31 | return true; |
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| 32 | } |
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| 33 | return false; |
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| 34 | } |
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| 35 | |
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| 36 | ///Finds the smallest prime not less then \c n. |
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| 37 | int nextPrim(int n) |
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| 38 | { |
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| 39 | for(n+=!(n%2);!isPrim(n);n+=2) ; |
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| 40 | return n; |
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| 41 | } |
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| 42 | |
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| 43 | |
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| 44 | /// Class to generate consecutive primes |
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| 45 | class Primes |
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| 46 | { |
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| 47 | std::vector<int> primes; |
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| 48 | int n; |
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| 49 | |
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| 50 | bool isPrime(int m) |
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| 51 | { |
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| 52 | for(int i=0;m<primes[i]*primes[i];i++) if(!(m%primes[i])) return false; |
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| 53 | return true; |
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| 54 | } |
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| 55 | public: |
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| 56 | Primes() : n(1) {} |
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| 57 | |
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| 58 | int operator() () |
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| 59 | { |
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| 60 | if(primes.size()==0) { |
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| 61 | primes.push_back(2); |
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| 62 | return 2; |
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| 63 | } |
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| 64 | else { |
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| 65 | do n+=2; while(!isPrime(n)); |
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| 66 | primes.push_back(n); |
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| 67 | return n; |
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| 68 | } |
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| 69 | } |
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| 70 | }; |
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| 71 | |
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| 72 | |
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| 73 | #endif |
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