42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
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#ifndef __RANDOM_H__
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#define __RANDOM_H__
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class Random
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{
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private:
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#define RAND_N 624
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unsigned long mt[RAND_N]; /* the array for the state vector */
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int mti; /* mti==RAND_N+1 means mt[RAND_N] is not initialized */
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public:
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Random();
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Random(unsigned long int seed);
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Random(int keys[], int length);
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~Random();
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public:
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/* generates a random number on [0,0xffffffff]-interval */
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unsigned long int genInt32();
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/* generates a random number on [0,0x7fffffff]-interval */
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long int genInt31();
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/* generates a random number on [0,1]-real-interval */
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double genReal1();
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/* generates a random number on [0,1)-real-interval */
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double genReal2();
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/* generates a random number on (0,1)-real-interval */
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double genReal3();
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/* generates a random number on [0,1) with 53-bit resolution*/
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double genReal53();
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/* generate integer random number on [0, range) int interval */
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int genInt(int range);
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private:
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void initLong(unsigned long int s);
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};
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#endif
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