std::uniform_int_distribution - cppreference.com

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# std::uniform_int_distribution

From cppreference.com
< cpp‎ | numeric‎ | random

Defined in header `<random>` |  |
template< class IntType = int > class uniform_int_distribution; |  | (since C++11)

Produces random integer values i, uniformly distributed on the closed interval `[a, b]`, that is, distributed according to the discrete probability function

  P(i|a,b) =

  1
  b − a + 1

  .

### [edit] Member types

Member type | Definition
`result_type` | IntType
| This section is incomplete Reason: list of allowed types from 26.5.1.1, here and for every distribution
`param_type` | the type of the parameter set, unspecified

### [edit] Member functions

(constructor) | constructs new distribution (public member function) [edit]
reset | resets the internal state of the distribution (public member function) [edit]
##### Generation
operator() | generates the next random number in the distribution (public member function) [edit]
##### Characteristics
ab | returns the distribution parameters (public member function) [edit]
param | gets or sets the distribution parameter object (public member function) [edit]
min | returns the minimum potentially generated value (public member function) [edit]
max | returns the maximum potentially generated value (public member function) [edit]

### [edit] Non-member functions

operator==operator!= | compares two distribution objects (function) [edit]
operator<<operator>> | performs stream input and output on pseudo-random number distribution (function) [edit]

### [edit] Example

This program simulates throwing 6-sided dice.

Run this code

    #include <random>
    #include <iostream>

    int main()
    {
        std::random_device rd;
        std::mt19937 gen(rd());
        std::uniform_int_distribution<> dis(1, 6);

        for (int n=0; n<10; ++n)
            std::cout << dis(gen) << ' ';
        std::cout << '\n';
    }

Possible output:

    1 1 6 5 2 2 5 5 6 2

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