FastRandom Methods | GeneticSharp |
The FastRandom type exposes the following members.
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Methods
Name | Description | |
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Equals | (Inherited from Object.) | |
Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) | |
GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) | |
GetType | Gets the type of the current instance. (Inherited from Object.) | |
MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) | |
Next |
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(Int32) |
Generates a random int over the range 0 to upperBound-1, and not including upperBound.
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Next(Int32, Int32) |
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 |
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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NextBytes |
Fills the provided byte array with random bytes.
This method is functionally equivalent to System.Random.NextBytes().
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NextDouble |
Generates a random double. Values returned are from 0.0 up to but not including 1.0.
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NextInt |
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 |
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 |
Reinitialises using an int value as a seed.
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
See Also