https://github.com/scottchiefbaker/simple-prng

Simple C++ implementations for popular PRNGs
https://github.com/scottchiefbaker/simple-prng

Last synced: 11 days ago
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Simple C++ implementations for popular PRNGs

• Host: GitHub
• URL: https://github.com/scottchiefbaker/simple-prng
• Owner: scottchiefbaker
• License: mit
• Created: 2024-10-23T01:49:03.000Z (13 days ago)
• Default Branch: main
• Last Pushed: 2024-10-23T21:19:47.000Z (13 days ago)
• Last Synced: 2024-10-24T09:05:22.401Z (12 days ago)
• Language: C++
• Size: 17.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# simple-prng

Simple C++ implementations for popular Pseudo Random Number Generators

## Usage

```c++

#include 

#include 

#include 

#include "pcg32.cpp"

int main(int argc, char *argv[]) {

	pcg32 prng;

	// Seed the PRNG

	uint64_t seeds[2] = { 38424, 84924 };

	prng.seed(seeds);

	// Warm up the PRNG

	for (int i = 0; i < 1024; i++) {

		prng.rand();

	}

	// 32 bit randoms

	for (int i = 0; i < 5; i++) { printf("%llu\n", prng.rand()); }

	// 64 bit randoms

	for (int i = 0; i < 5; i++) { printf("%llu\n", prng.rand64()); }

}

```

## Methods

`void prng.seed(uint64_t seeds[x])` seed the PRNG with 1 - 4 seeds

`uint32_t prng.rand()` fetch a random 32bit integer

`uint64_t prng.rand64()` fetch a random 64bit integer

## Available PRNGs

* PCG32 - `pcg32.cpp`

* SplitMix64 - `splitmix64.cpp`

* xoroshiro128+ - `xoroshiro128plus.cpp`

* xoshiro256** - `xoshiro256starstar.cpp`