public member function
<random>

# std::bernoulli_distribution::operator()

(1) ```template bool operator()(URNG& g); ``` ```template bool operator()(URNG& g, const param_type& parm); ```
Generate random number
Returns a new random value with the probability associated to the object (version 1) or with the probability specified by parm (version 2).

The generator object (g) supplies uniformly-distributed random integers through its operator() member function. The bernoulli_distribution object transforms the values obtained this way so that successive calls to this member function with the same arguments produce values that follow a Bernoulli distribution with the appropriate probability.

### Parameters

g
A uniform random number generator object, used as the source of randomness.
URNG shall be a uniform random number generator type, such as one of the standard generator classes.
parm
An object representing the distribution's parameters, obtained by a call to member function param.
param_type is a member type.

### Return value

A new random value.

### Example

 ``1234567891011121314151617181920`` ``````// bernoulli_distribution example: fortune-teller #include #include #include int main() { std::cout << "Please, enter a yes/no question (I will answer it):" << std::endl; std::string text; getline(std::cin,text); std::seed_seq seed (text.begin(),text.end()); // seed using question std::default_random_engine generator (seed); std::bernoulli_distribution distribution(0.5); bool result = distribution(generator); std::cout << ( result ? "yes" : "no" ) << std::endl; return 0; }``````

Possible output:
 ```Please, enter a yes/no question (I will answer it): Will I get married soon? no ```

### Complexity

Amortized constant (one invocation of g.operator()).