76 lines
2.3 KiB
MQL5
76 lines
2.3 KiB
MQL5
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//+------------------------------------------------------------------+
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//| StringBenchmark.mqh |
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//| Copyright 2021, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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//+------------------------------------------------------------------+
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//| Facultative study: Benchmark |
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//| Base class which provides common benchmarking functionalty |
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//+------------------------------------------------------------------+
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class Benchmark
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{
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protected:
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int i; // loop variable
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static Benchmark *array[]; // all test-cases are accumulated here
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public:
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Benchmark()
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{
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// store all instances of Benchmark in the static array
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const int n = ArraySize(array);
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ArrayResize(array, n + 1);
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array[n] = &this;
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}
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virtual void init() = 0; // abstract method to prepare algorithm
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virtual void calc() = 0; // abstract method to do main job
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virtual void done() = 0; // abstract method to finalize
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// main method for testing all created instances
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static void runAll(const int n)
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{
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for(int k = 0; k < ArraySize(array); ++k)
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{
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array[k].run(n);
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}
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}
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// main method of every specific test instance
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// it provides the same job scheme for all kinds of tests:
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// 'init', 'calc' in the loop, 'done'
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void run(const int n)
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{
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init();
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uint time0 = GetTickCount();
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for(i = 0; i < n; ++i)
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{
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calc();
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}
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Print(GetTickCount() - time0, "ms");
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done();
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}
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};
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static Benchmark *Benchmark::array[];
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//+------------------------------------------------------------------+
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//| Base class for benchmarking of string building |
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//+------------------------------------------------------------------+
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class StrBase : public Benchmark
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{
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protected:
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string t; // output string, will take result
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public:
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void init() override
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{
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t = NULL;
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}
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void done() override
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{
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Print("L:", StringLen(t), ", B:", StringBufferLen(t));
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}
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};
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//+------------------------------------------------------------------+
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