std::uniform_real_distribution
From Cppreference
| Defined in header <random>
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| template< class RealType = double >
class uniform_real_distribution; |
(since C++11) | |
Produces random floating-point values i, uniformly distributed on the interval [a, b), that is, distributed according to the probability function:
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P(i|a,b) =
.1 b − a
Contents |
[edit] Member types
| Member type | Definition |
| result_type | RealType |
| param_type | the type of the parameter set, unspecified |
[edit] Member functions
| constructs new distribution (public member function) |
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| resets the internal state of the distribution (public member function) |
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Generation | |
| generates the next random number in the distribution (public member function) |
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Characteristics | |
| returns the a distribution parameter (minimum value) (public member function) |
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| returns the b distribution parameter (maximum value) (public member function) |
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| gets or sets the distribution parameter object (public member function) |
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| returns the minimum potentially generated value (public member function) |
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| returns the maximum potentially generated value (public member function) |
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[edit] Non-member functions
| compares two distribution objects (function) |
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| performs stream input and output on pseudo-random number distribution (function) |
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[edit] Example
print 10 random numbers between 0 and 1
#include <random> #include <iostream> int main() { std::random_device rd; std::mt19937 gen(rd()); std::uniform_real_distribution<> dis(1, 2); for(int n=0; n<10; ++n) { std::cout << dis(gen) << ' '; } std::cout << '\n'; }
Output:
1.80829 1.15391 1.18483 1.38969 1.36094 1.0648 1.97798 1.27984 1.68261 1.57326