std::experimental:: randint
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]
.
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
#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
See also
reseeds the per-thread random engine
(function) |