How do I generate reproducible random sequences in C++?

In C++, to generate reproducible random sequences, you should use the C++11 `` library, which provides facilities for random number generation that can be seeded to produce the same sequence of numbers. This is crucial for testing and debugging purposes where repeated experiments need consistent results.

Example of Reproducible Random Sequence Generation

Here is a simple example demonstrating how to generate a reproducible sequence of random numbers using the `` library:

#include <iostream> #include <random> int main() { // Seed the random number generator std::mt19937 generator(42); // Seed with a specific value for reproducibility // Define a distribution range std::uniform_int_distribution distribution(1, 100); // Generate random numbers for (int i = 0; i < 5; ++i) { std::cout << distribution(generator) << std::endl; } return 0; }

This code uses a Mersenne Twister engine initialized with a seed of 42. Each time you run the program, it will generate the same sequence of random numbers.


Reproducible random sequences C++ random number generation C++11 library randomness in C++ consistent random numbers.

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