A C++ template library for embedded applications
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random

Utilities for producing random numbers.

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random

The base class for all 32 bit random number generators.
virtual ~random();
virtual void initialise(uint32_t seed) = 0;
virtual uint32_t operator()() = 0;
virtual uint32_t range(uint32_t low, uint32_t high) - 0;

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random_xorshift

Uses a 128bit XOR shift algorithm for producing a pseudo-random sequence of integers.
The result is a 32 bit integer between 0 and 4,294,967,295 (2^32 - 1).

random_xor_shift()
Constructor.
Uses the address of the object as the seed for the sequence.

random_xor_shift(uint32_t seed)
Constructor.
Uses seed as the seed for the sequence.

void initialise(uint32_t seed)
Sets the seed as the new seed for the sequence.

uint32_t operator()()
Returns the next number in the pseudo-random sequence.

uint32_t range(uint32_t low, uint32_t high)
Returns a number between the specified ranges, inclusive.

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random_lcg

Generates a 32 bit pseudo-random number using a linear congruent generator.
The result is a 32 bit integer between 0 and 2,147,483,647 (2^31 - 1).

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random_lcg()
Constructor.
Uses the address of the object as the seed for the sequence

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random_lcg(uint32_t seed)
Constructor.
Uses seed as the seed for the sequence.

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void initialise(uint32_t seed)
Sets the seed as the new seed for the sequence.

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uint32_t operator()()
Returns the next number in the pseudo-random sequence.

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uint32_t range(uint32_t low, uint32_t high)
Returns a number between the specified ranges, inclusive.

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random_clcg

Generates a 32 bit pseudo-random number using a combined linear congruent generator.
The result is a 32 bit integer between 0 and 2,147,483,647 (2^31 - 1).

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random_clcg()
Constructor.
Uses the address of the object as the seed for the sequence.

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random_clcg(uint32_t seed)
Constructor.
Uses seed as the seed for the sequence.

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void initialise(uint32_t seed)
Sets the seed as the new seed for the sequence.

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uint32_t operator()()
Returns the next number in the pseudo-random sequence.

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uint32_t range(uint32_t low, uint32_t high)
Returns a number between the specified ranges, inclusive.

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random_lsfr

Generates a 32 bit pseudo-random number using a linear shift feedback register.
The result is a 32 bit integer between 1 and 4,294,967,295 (2^32 - 1).
The seed must not be zero. The output does not include zero.

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random_lsfr()
Constructor.
Uses the address of the object as the seed for the sequence.

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random_lsfr(uint32_t seed)
Constructor.
Uses seed as the seed for the sequence.

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void initialise(uint32_t seed)
Sets the seed as the new seed for the sequence.

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uint32_t operator()()
Returns the next number in the pseudo-random sequence.

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uint32_t range(uint32_t low, uint32_t high)
Returns a number between the specified ranges, inclusive.

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random_mwc

Generates a 32 bit pseudo-random number using a multiply-with-carry algorithm.
The result is a 32 bit integer between 1 and 4,294,967,295 (2^32 - 1).

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random_mwc()
Constructor.
Uses the address of the object as the seed for the sequence.

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random_mwc(uint32_t seed)
Constructor.
Uses seed as the seed for the sequence.

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void initialise(uint32_t seed)
Sets the seed as the new seed for the sequence.

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uint32_t operator()()
Returns the next number in the pseudo-random sequence.

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uint32_t range(uint32_t low, uint32_t high)
Returns a number between the specified ranges, inclusive.

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random_pcg

Generates a 32 bit pseudo-random number using a  permuted congruential generator algorithm.
The result is a 32 bit integer between 1 and 4,294,967,295 (2^32 - 1).

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random_pcg()
Constructor.
Uses the address of the object as the seed for the sequence.

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random_pcg(uint32_t seed)
Constructor.
Uses seed as the seed for the sequence.

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void initialise(uint32_t seed)
Sets the seed as the new seed for the sequence.

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uint32_t operator()()
Returns the next number in the pseudo-random sequence.

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uint32_t range(uint32_t low, uint32_t high)
Returns a number between the specified ranges, inclusive.

random.h