std::normal...distribution(3)

okay bestie, we're on the std::normal...distribution(3) page from the C++ Standard Libary manual — yep, that's how the header spells it, we keep it 💅. This is the constructor page for std::normal_distribution, and it's lowkey iconic.

🎀 NAME 🎀

std::normal_distribution::normal_distribution — std::normal_distribution::normal_distribution. That's the whole NAME line, fr fr. It's the constructor constructor moment 👑

✨ Synopsis ✨

Three overloads, all (since C++11), and the code is exactly this:

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)

Calling any of these constructs a new distribution object 🫶.

• 2) Uses mean and stddev as the distribution parameters.
• 3) Uses params as the distribution parameters.

🚨 and bestie, read this part twice: the behavior is undefined if stddev is not greater than zero. Not "oops maybe", not "sorta weird" — undefined behavior, periodt 😭💀.

🍓 Parameters 🍓

• mean — the μ distribution parameter (mean) ✨
• stddev — the σ distribution parameter (standard deviation) 💅
• params — the distribution parameter set 🎀

🦋 Defect reports 🦋

The following behavior-changing defect reports were applied retroactively to previously published C++ standards, so they're giving "we fixed it after the fact" energy 🙈:

• DR P0935R0 — applied to C++11; behavior as published: default constructor was explicit; correct behavior: made implicit.

Okay bestie, that's the whole page 💖 — source: http://cppreference.com, date/version: 2024.06.10, page: std::normal...distribution(3). Go forth and distribute normally, no cap 👑🌈