stats.h File Reference

Provides numerical and mathematical utilities. More...

#include <array>
#include <cassert>
#include <cinttypes>
#include <cstdlib>
#include <limits>
#include <numeric>
#include "fakestd.h"
#include "logic.h"
#include "tdecl.h"

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Classes
struct	kblib::trivial_pair< T >
	std::pair isn't constexpr enough, so I'm stuck with this. All I use it for is removing a temporary variable from calc_fib_size(). More...
struct	kblib::trivial_array< T, N >
	std::array isn't constexpr enough in C++14, so a dedicated array class is needed for constexpr functions. More...
struct	kblib::nums::max_t
	Shorthand for std::numeric_limits::max(). More...
struct	kblib::nums::min_t
	Shorthand for std::numeric_limits::min() More...

Namespaces
namespace	kblib
	The main namespace in which all entities from kblib are defined.
namespace	kblib::nums

Functions
template<typename T , typename U >
constexpr auto	kblib::div (T num, U den) noexcept -> decltype(std::div(num, den))
template<typename U >
constexpr auto	kblib::calc_fib_size () noexcept -> std::size_t
	Calculate the index of the largest fibonacci number that can be represented by a given unsigned integral type. More...
template<typename U , std::size_t N = calc_fib_size<U>() + 1>
constexpr auto	kblib::make_fib_arr () noexcept -> trivial_array< U, N >
	Generates the first N values of the fibonacci sequence. More...
template<typename U = std::uintmax_t>
constexpr auto	kblib::fibonacci (int n) noexcept -> U
	Compile-time table fibonacci function. More...
template<typename T = double>
constexpr auto	kblib::pi () -> T
template<typename T = double>
constexpr auto	kblib::tau () -> T
template<typename T = double>
constexpr auto	kblib::e () -> T
template<typename T = double>
constexpr auto	kblib::root_2 () -> T
template<typename T = double>
constexpr auto	kblib::phi () -> T
template<typename A , typename F >
constexpr auto	kblib::saturating_cast (F x) noexcept -> enable_if_t< std::is_integral< A >::value and std::is_integral< F >::value and std::is_unsigned< A >::value, A >
template<typename T , typename F >
constexpr auto	kblib::quantize_step (F low, F delta, F val) noexcept -> T
	Quantize a real-valued value into a discrete integer. More...
template<typename T , typename F >
constexpr auto	kblib::quantize_range (F low, F high, F val) noexcept -> T
	Quantize a real-valued value into a discrete integer. More...

Variables
constexpr struct kblib::nums::max_t	kblib::nums::max
constexpr struct kblib::nums::min_t	kblib::nums::min

Detailed Description

Provides numerical and mathematical utilities.

Author

killerbee

Date

2019-2021

Copyright

GNU General Public Licence v3.0

Definition in file stats.h.