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std::experimental::randint

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Defined in header <experimental/random>
template< class IntType >
IntType randint( IntType a, IntType b );
(library fundamentals TS v2)

Generates a random integer in the closed interval [a, b].

[edit] Parameters

a, b - integer values specifying the range

[edit] Return value

A random integer i in the closed interval [a, b], produced using a thread-local instance of std::uniform_int_distribution <IntType> invoked with the per-thread random number engine.

[edit] Remarks

If IntType is not one of short, int, long, long long, unsigned short, unsigned int, unsigned long, or unsigned long long, the program is ill-formed.

The behavior is undefined if a > b.

[edit] Example

Run this code
#include <experimental/random>
#include <iostream>
 
int main()
{
 int random_number = std::experimental::randint(100, 999);
 std::cout << "random 3-digit number: " << random_number << '\n';
}

Possible output:

random 3-digit number: 273

[edit] See also

reseeds the per-thread random engine
(function) [edit]
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