normal_distribution() : normal_distribution(0.0) {} | (1) | (since C++11) |

explicit normal_distribution( RealType mean, RealType stddev = 1.0 ); | (2) | (since C++11) |

explicit normal_distribution( const param_type& params ); | (3) | (since C++11) |

Constructs a new distribution object. (2) uses `mean`

and `stddev`

as the distribution parameters. (3) uses `params`

as the distribution parameters.

mean | - | the μ distribution parameter (mean) |

stddev | - | the σ distribution parameter (standard deviation) |

params | - | the distribution parameter set |

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR | Applied to | Behavior as published | Correct behavior |
---|---|---|---|

P0935R0 | C++11 | default constructor was explicit | made implicit |

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