| 메소드 | 설명 | |
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| Next ( ) : int |
Generates a random int over the range 0 to int.MaxValue-1. MaxValue is not generated in order to remain functionally equivalent to System.Random.Next(). This does slightly eat into some of the performance gain over System.Random, but not much. For better performance see: Call NextInt() for an int over the range 0 to int.MaxValue. Call NextUInt() and cast the result to an int to generate an int over the full Int32 value range including negative values.
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| Next ( int upperBound ) : int |
Generates a random int over the range 0 to upperBound-1, and not including upperBound.
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| Next ( int lowerBound, int upperBound ) : int |
Generates a random int over the range lowerBound to upperBound-1, and not including upperBound. upperBound must be >= lowerBound. lowerBound may be negative.
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| NextBool ( ) : bool |
Generates a single random bit. This method's performance is improved by generating 32 bits in one operation and storing them ready for future calls.
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| NextByte ( ) : byte |
Generates a signle random byte with range [0,255]. This method's performance is improved by generating 4 bytes in one operation and storing them ready for future calls.
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| NextBytes ( byte buffer ) : void |
Fills the provided byte array with random bytes. This method is functionally equivalent to System.Random.NextBytes().
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| NextBytes8 ( byte buffer ) : void |
A version of NextBytes that uses a pointer to set 4 bytes of the byte buffer in one operation thus providing a nice speedup. The loop is also partially unrolled to allow out-of-order-execution, this results in about a x3 speedup on an Intel Core i7 920 (Bloomfield). Thus performance may vary wildly on different CPUs depending on the number of execution units available. Another significant speedup is obtained by setting the 4 bytes by indexing pDWord (e.g. pDWord[i++]=_w) instead of dereferencing it (e.g. *pDWord++=_w). Note that this routine requires the unsafe compilation flag to be specified and so is commented out by default. The byte array length must be divisible by 8. |
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| NextDouble ( ) : double |
Generates a random double. Values returned are over the range [0, 1). That is, inclusive of 0.0 and exclusive of 1.0.
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| NextDoubleNonZero ( ) : double |
Generates a random double. Values returned are over the range (0, 1). That is, exclusive of both 0.0 and 1.0.
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| NextFloat ( ) : float |
Generates a random float. Values returned are over the range [0, 1). That is, inclusive of 0.0 and exclusive of 1.0.
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| NextInt ( ) : int |
Generates a random int over the range 0 to int.MaxValue, inclusive. This method differs from Next() only in that the range is 0 to int.MaxValue and not 0 to int.MaxValue-1. The slight difference in range means this method is slightly faster than Next() but is not functionally equivalent to System.Random.Next().
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| NextUInt ( ) : uint |
Generates a uint. Values returned are over the full range of a uint, uint.MinValue to uint.MaxValue, inclusive. This is the fastest method for generating a single random number because the underlying random number generator algorithm generates 32 random bits that can be cast directly to a uint.
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| Reinitialise ( int seed ) : void |
Reinitialises using an int value as a seed.
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| XorShiftRandom ( ) : System |
Initialises a new instance using a seed generated from the class's static seed RNG.
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| XorShiftRandom ( int seed ) : System |
Initialises a new instance using an int value as seed. This constructor signature is provided to maintain compatibility with System.Random
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| public Next ( int lowerBound, int upperBound ) : int | ||
| lowerBound | int | |
| upperBound | int | |
| 리턴 | int | |