std::experimental::randint
From cppreference.com
< cpp | experimental
| Defined in header <experimental/random>
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| template <class IntType> IntType randint(IntType a, IntType b); |
(library fundamentals TS v2) | |
Generates a random integer in the closed interval [a, b].
Parameters
| a, b | - | integer values specifying the range |
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.
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.
Example
Run this code
#include <iostream> #include <experimental/random> 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
See also
| reseeds the per-thread random engine (function) |