std::mersenne_twister_engine::seed - cppreference.com

##### cppreference.com

##### Search

Create account

##### Namespaces

- Page
- Discussion

##### Variants

##### Views

- View
- Edit
- History

##### Actions

# std::mersenne_twister_engine::seed

From cppreference.com
< cpp‎ | numeric‎ | random‎ | mersenne twister engine

[edit template]

void seed( result_type value = default_seed ); | (1) | (since C++11)
template< class Sseq > void seed( Sseq& seq ); | (2) | (since C++11)

Reinitializes the internal state of the random-number engine using new seed value.

| This section is incomplete

### [edit] Parameters

value | - | seed value to use in the initialization of the internal state
seq | - | seed sequence to use in the initialization of the internal state

### [edit] Exceptions

(none)

### [edit] Complexity

| This section is incomplete

### [edit] Example

Run this code

    #include <iostream>
    #include <random>

    int main()
    {
        std::mt19937 gen;

        // Seed the engine with an unsigned int
        gen.seed(1);
        std::cout << "after seed by 1: " << gen() << '\n';

        // Seed the engine with two unsigned ints
        std::seed_seq sseq{1, 2};
        gen.seed(sseq);
        std::cout << "after seed by {1,2}: " << gen() << '\n';
    }

Possible output:

    after seed by 1: 1791095845
    after seed by {1,2}: 3127717181

Retrieved from "http://en.cppreference.com/mwiki/index.php?title=cpp/numeric/random/mersenne_twister_engine/seed&oldid=67887"
Category:

- Todo without reason