/// <summary>
/// Returns a delegate that is able to generate random
/// <c>int</c> numbers in an arbitrary range.
/// </summary>
/// <param name="byteGenerator">A delegate that fills the passed byte array with random values.</param>
/// <returns>
/// A delegate that wraps around the <paramref name="byteGenerator"/>
/// to produce random <c>int</c> values in the range supplied as its argument.
/// </returns>
public static BoundedGenerator <int> CreateNextIntBounded(ByteGenerator byteGenerator)
{
UpperBoundedGenerator <long> nextLongUpperBounded = CreateNextLongUpperBounded(byteGenerator);
return((int minValue, int maxValue) =>
minValue + (int)nextLongUpperBounded((long)maxValue - minValue));
}
/// <summary>
/// Initializes an instance of <see cref="RandomCryptographic"/>
/// with a single instance of cryptographically strong <see cref="RandomNumberGenerator"/>.
/// </summary>
/// <param name="gen">
/// An instance of cryptographically strong <see cref="RandomNumberGenerator"/>.
/// If <c>null</c>, an instance built from <see cref="RNGCryptoServiceProvider.Create"/> will be used.
/// </param>
public RandomCryptographic(RandomNumberGenerator gen = null)
{
if (gen == null)
{
gen = RNGCryptoServiceProvider.Create();
}
this.gen = gen;
// initialize methods
this.___nextIntB = RandomFunctionalityExtensions.CreateNextIntBounded(this.gen.GetBytes);
this.___nextIntNB = RandomFunctionalityExtensions.CreateNextIntUnbounded(this.gen.GetBytes);
this.___nextIntUB = RandomFunctionalityExtensions.CreateNextIntUpperBounded(this.gen.GetBytes);
this.___nextLongB = RandomFunctionalityExtensions.CreateNextLongBounded(this.gen.GetBytes);
this.___nextLongNB = RandomFunctionalityExtensions.CreateNextLongUnbounded(this.gen.GetBytes);
this.___nextLongUB = RandomFunctionalityExtensions.CreateNextLongUpperBounded(this.gen.GetBytes);
this.___nextUIntB = RandomFunctionalityExtensions.CreateNextUIntBounded(this.gen.GetBytes);
this.___nextUIntNB = RandomFunctionalityExtensions.CreateNextUIntUnbounded(this.gen.GetBytes);
this.___nextUIntUB = RandomFunctionalityExtensions.CreateNextUIntUpperBounded(this.gen.GetBytes);
this.___nextULongB = RandomFunctionalityExtensions.CreateNextULongBounded(this.gen.GetBytes);
this.___nextULongNB = RandomFunctionalityExtensions.CreateNextULongUnbounded(this.gen.GetBytes);
this.___nextULongUB = RandomFunctionalityExtensions.CreateNextULongUpperBounded(this.gen.GetBytes);
}
private void ___generator_delegate_init()
{
genLongBounded = RandomFunctionalityExtensions.CreateNextLongBounded(rnd.NextBytes);
genLongUpperBounded = RandomFunctionalityExtensions.CreateNextLongUpperBounded(rnd.NextBytes);
genLongUnbounded = RandomFunctionalityExtensions.CreateNextLongUnbounded(rnd.NextBytes);
genULongBounded = RandomFunctionalityExtensions.CreateNextULongBounded(rnd.NextBytes);
genULongUpperBounded = RandomFunctionalityExtensions.CreateNextULongUpperBounded(rnd.NextBytes);
genULongUnbounded = RandomFunctionalityExtensions.CreateNextULongUnbounded(rnd.NextBytes);
}
