std::expone...::operator()(3)

🌟 NAME 🌟

std::exponential_distribution::operator() — std::exponential_distribution::operator()

This is the C++ Standard Libary manual, section 3, bestie. Yes, it’s the call operator for std::exponential_distribution, and the NAME line literally says it twice like it’s hyping itself up 💅.

✨ Synopsis ✨

okay so there are two overloads, and both have been around since C++11:

          template< class Generator >                                       (1)
       (since C++11)
          result_type operator()( Generator& g );
          template< class Generator >                                       (2)
       (since C++11)
          result_type operator()( Generator& g, const param_type& params );

Overload (1) uses the associated parameter set. Overload (2) uses params instead. The associated parameter set is not modified — hands off, no cap 🫶.

It generates random numbers that are distributed according to the associated probability function. The entropy is acquired by calling g.operator().

🎀 Parameters 🎀

• g — a uniform random bit generator object.
• params — distribution parameter set to use instead of the associated one.

🦋 Type requirements 🦋

• Generator must meet the requirements of UniformRandomBitGenerator. That’s the vibe check it has to pass, periodt.

🌸 Return value 🌸

The generated random number. That’s it, that’s the tea ☕.

💖 Complexity 💖

Amortized constant number of invocations of g.operator(). Literally amortized constant, bestie — not a whole dramatic spiral.

Okay that’s the whole page, mwah 💋 — source: http://cppreference.com, version/date: 2024.06.10 🎀