std::gamma_...distribution(3)

💖 NAME 💖

Okay bestie, you found the std::gamma_...distribution(3) page from the C++ Standard Libary, and the manual name is literally std::gamma_...distribution(3). The main character is std::gamma_distribution::gamma_distribution - std::gamma_distribution::gamma_distribution. No cap, that's the name section. 🎀

✨ Synopsis ✨

Here's the constructor lineup, copied with all its little labels and (since C++11) moments:

          gamma_distribution() : gamma_distribution(1.0) {}
       (1) (since C++11)
          explicit gamma_distribution( RealType alpha, RealType beta = 1.0
       (2) (since C++11)
          );
          explicit gamma_distribution( const param_type& params );
       (3) (since C++11)

Constructs a new distribution object. That's the whole assignment. 💅

• 1) The constructor labeled (1) is the no-argument one in the synopsis above, and it's marked (since C++11).
• 2) Uses alpha and beta as the distribution parameters.
• 3) Uses params as the distribution parameters.

🦋 Parameters 🦋

• alpha — the α distribution parameter (shape). She's the shape bestie. 🌸
• beta — the β distribution parameter (scale). That's the scale one. 🎀
• params — the distribution parameter set. The whole little bundle. 🫶

💅 Defect reports 💅

The following behavior-changing defect reports were applied retroactively to previously published C++ standards. Yes, retroactively — the plot twist energy is real. 😭

• DR: P0935R0
  • Applied to: C++11
  • Behavior as published: default constructor was explicit
  • Correct behavior: made implicit

Mwah 💋 source: http://cppreference.com; version/date: 2024.06.10; manual page: std::gamma_...distribution(3). Slay and hydrate. 💖