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std::uniform_real_distribution a() method in C++ with Examples

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  • Last Updated : 17 Jun, 2019
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The a() method of uniform_real_distribution class in C++ is used to get the lower bound of this uniform_real_distribution.


result_type a() const;

Parameters: This method do not accepts any parameters.

Return Value: This method return the ‘a’ parameter in the distribution, which is the lower bound or the minimum possibly generated value in this uniform_real_distribution.


// C++ code to demonstrate
// the working of a() function
#include <iostream>
// for uniform_real_distribution function
#include <random>
using namespace std;
int main()
    double a = 10, b = 20.5;
    // Initializing of uniform_real_distribution class
    uniform_real_distribution<double> distribution(a, b);
    // Using a()
    cout << "Lower Bound: "
         << distribution.a() << endl;
    return 0;


Lower Bound: 10


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