IGLib  1.5
The IGLib base library for development of numerical, technical and business applications.
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IG.Num.RandomGeneratorSystem Class Reference

Generator of uniformly distributed random numbers. Based on system random generator. WARNING: Instance members are not guaranteed to be thread safe! More...

+ Inheritance diagram for IG.Num.RandomGeneratorSystem:
+ Collaboration diagram for IG.Num.RandomGeneratorSystem:

Public Member Functions

 RandomGeneratorSystem ()
 Initializes a new instance of random generator, using a time-dependent default seed value. More...
 
 RandomGeneratorSystem (int seed)
 Initializes a new instance of random generator, using the specified seed value. More...
 
override double NextDouble ()
 A double-precision floating point number greater than or equal to 0.0, and LESS THAN 1.0. More...
 
virtual double NextDouble (double maxValue)
 A double-precision floating point number greater than or equal to 0.0, and LESS than the specified maximum. More...
 
virtual double NextDouble (double minValue, double maxValue)
 A double-precision floating point number greater than or equal to the specified minimum, and LESS THAN the specified maximum. More...
 
virtual double NextDoubleInclusive ()
 A double-precision floating point number greater than or equal to 0.0, and LESS OR EQUAL than 1.0. More...
 
virtual double NextDoubleInclusive (double maxValue)
 A double-precision floating point number greater than or equal to 0.0, and LESS OR EQUAL than the specified maximum. More...
 
virtual double NextDoubleInclusive (double minValue, double maxValue)
 A double-precision floating point number greater than or equal to the specified minimum, and LESS OR EQUAL than the specified maximum. More...
 
override int Next ()
 Returns a nonnegative random number. More...
 
override int Next (int maxValue)
 Returns a nonnegative random number LESS THAN the specified maximum. More...
 
override int Next (int minValue, int maxValue)
 Returns a random number within a specified range (lower bound inclusive, UPPER BOUND EXCLUSIVE). More...
 
virtual int NextInclusive (int maxValue)
 Returns a nonnegative random number LESS OR EQUAL the specified maximum. More...
 
virtual int NextInclusive (int minValue, int maxValue)
 Returns a random number within a specified range (lower bound inclusive, upper bound INCLUSIVE). More...
 
override void NextBytes (byte[] buffer)
 Fills the elements of a specified array of bytes with random numbers. More...
 

Detailed Description

Generator of uniformly distributed random numbers. Based on system random generator. WARNING: Instance members are not guaranteed to be thread safe!

Constructor & Destructor Documentation

IG.Num.RandomGeneratorSystem.RandomGeneratorSystem ( )
inline

Initializes a new instance of random generator, using a time-dependent default seed value.

IG.Num.RandomGeneratorSystem.RandomGeneratorSystem ( int  seed)
inline

Initializes a new instance of random generator, using the specified seed value.

Parameters
seedA number used to calculate a starting value for the pseudo-random number sequence. If a negative number is specified, the absolute value of the number is used.

Member Function Documentation

override double IG.Num.RandomGeneratorSystem.NextDouble ( )
inline

A double-precision floating point number greater than or equal to 0.0, and LESS THAN 1.0.

Returns
A double-precision floating point number greater than or equal to 0.0, and less than 1.0.

Implements IG.Num.IRandomGenerator.

virtual double IG.Num.RandomGeneratorSystem.NextDouble ( double  maxValue)
inlinevirtual

A double-precision floating point number greater than or equal to 0.0, and LESS than the specified maximum.

Returns
A double-precision floating point number greater than or equal to 0.0, and LESS THAN THE SPECIFIED MAXIMUM.

Implements IG.Num.IRandomGenerator.

Reimplemented in IG.Num.RandGeneratorThreadSafe.

virtual double IG.Num.RandomGeneratorSystem.NextDouble ( double  minValue,
double  maxValue 
)
inlinevirtual

A double-precision floating point number greater than or equal to the specified minimum, and LESS THAN the specified maximum.

Returns
A double-precision floating point number greater than or equal to the specified minimum, and LESS than the specified maximum.

Implements IG.Num.IRandomGenerator.

Reimplemented in IG.Num.RandGeneratorThreadSafe.

virtual double IG.Num.RandomGeneratorSystem.NextDoubleInclusive ( )
inlinevirtual

A double-precision floating point number greater than or equal to 0.0, and LESS OR EQUAL than 1.0.

Returns
A double-precision floating point number greater than or equal to 0.0, and less than 1.0.

Implements IG.Num.IRandomGenerator.

Reimplemented in IG.Num.RandGeneratorThreadSafe.

virtual double IG.Num.RandomGeneratorSystem.NextDoubleInclusive ( double  maxValue)
inlinevirtual

A double-precision floating point number greater than or equal to 0.0, and LESS OR EQUAL than the specified maximum.

Returns
A double-precision floating point number greater than or equal to 0.0, and LESS OR EQUAL THAN THE SPECIFIED MAXIMUM.

Implements IG.Num.IRandomGenerator.

Reimplemented in IG.Num.RandGeneratorThreadSafe.

virtual double IG.Num.RandomGeneratorSystem.NextDoubleInclusive ( double  minValue,
double  maxValue 
)
inlinevirtual

A double-precision floating point number greater than or equal to the specified minimum, and LESS OR EQUAL than the specified maximum.

Returns
A double-precision floating point number greater than or equal to the specified minimum, and LESS OR EQUAL than the specified maximum.

Implements IG.Num.IRandomGenerator.

Reimplemented in IG.Num.RandGeneratorThreadSafe.

override int IG.Num.RandomGeneratorSystem.Next ( )
inline

Returns a nonnegative random number.

Returns
A 32-bit signed integer greater than or equal to zero and less than MaxValue.

Implements IG.Num.IRandomGenerator.

override int IG.Num.RandomGeneratorSystem.Next ( int  maxValue)
inline

Returns a nonnegative random number LESS THAN the specified maximum.

Parameters
maxValueThe EXCLUSIVE upper bound of the random number to be generated. Must be greater than or equal to zero.
Returns
A 32-bit signed integer greater than or equal to zero, and LESS THAN maxValue. If maxValue equals zero, maxValue is returned.

Implements IG.Num.IRandomGenerator.

override int IG.Num.RandomGeneratorSystem.Next ( int  minValue,
int  maxValue 
)
inline

Returns a random number within a specified range (lower bound inclusive, UPPER BOUND EXCLUSIVE).

Parameters
minValueThe inclusive lower bound of the random number returned.
maxValueThe EXCLUSIVE UPPER BOUND of the random number returned. Must be greater than or equal to minValue.
Returns
A 32-bit signed integer greater than or equal to minValue and less than maxValue. If minValue equals maxValue, minValue is returned.

Implements IG.Num.IRandomGenerator.

virtual int IG.Num.RandomGeneratorSystem.NextInclusive ( int  maxValue)
inlinevirtual

Returns a nonnegative random number LESS OR EQUAL the specified maximum.

Parameters
maxValueThe INCLUSIVE upper bound of the random number to be generated. Must be greater than or equal to zero.
Returns
A 32-bit signed integer greater than or equal to zero, and LESS OR EQUAL than maxValue. If maxValue equals zero, maxValue is returned.

Implements IG.Num.IRandomGenerator.

Reimplemented in IG.Num.RandGeneratorThreadSafe.

virtual int IG.Num.RandomGeneratorSystem.NextInclusive ( int  minValue,
int  maxValue 
)
inlinevirtual

Returns a random number within a specified range (lower bound inclusive, upper bound INCLUSIVE).

Parameters
minValuehe inclusive lower bound of the random number returned.
maxValueThe INCLUSIVE upper bound of the random number returned. Must be greater than or equal to minValue.
Returns
A 32-bit signed integer greater than or equal to minValue and LESS OR EQUAL than maxValue. If minValue equals maxValue, minValue is returned.

Implements IG.Num.IRandomGenerator.

Reimplemented in IG.Num.RandGeneratorThreadSafe.

override void IG.Num.RandomGeneratorSystem.NextBytes ( byte[]  buffer)
inline

Fills the elements of a specified array of bytes with random numbers.

Parameters
bufferAn array of bytes to contain random numbers.

Implements IG.Num.IRandomGenerator.


The documentation for this class was generated from the following file: