Leonardus: helper.h File Reference

Miscellaneous definitions and functions. More...

#include <cstdint>
#include <limits>
#include <climits>

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Typedefs
using	core_t = void(Context &)
	A shortcut for the core code function type.

Enumerations
enum class	AngularUnit : std::uint8_t { DEG , RAD }
	Angular Unit for trigonometric functions. More...

Variables
constexpr __float128	SOR_PI_180 = 0.017453292519943295769236907684886127134Q
	pi/180.

constexpr __float128	SOR_180_PI = 57.295779513082320876798154814105170332405Q
	180/pi.

constexpr __float128	SOR_2PI = 6.283185307179586476925286766559005768394Q
	2pi.

constexpr __float128	SOR_MAX_SQR = 1.797693134862315708145274237317043567981e+1936Q
	__float128 maximum that can be squared.

constexpr unsigned __int128	UINT128_MAX = std::numeric_limits<unsigned __int128>::max()
	Maximum unsigned int128.

constexpr __int128	SOI_MIN = std::numeric_limits<__int128>::min()
	Minimum int128.

constexpr __int128	SOI_MAX = std::numeric_limits<__int128>::max()
	Maximum int128.

constexpr size_t	ULBITS = sizeof( unsigned long ) * CHAR_BIT
	Number of bits in an unsigned long.

constexpr size_t	ULCHUNKS = 128 / ULBITS
	Number of unsigned longs fitting into an UINT128.

constexpr size_t	MAX_SOR_PRECISION = 34
	Valid decimal digits of a 113 bit mantissa of a 128 bit floating point number.

constexpr int	BASE10 = 10
	We use base 10.

Detailed Description

Miscellaneous definitions and functions.

Copyright

  Leonardus, a minimalist stack-based programming system.
  Copyright (C) 2025  Andreas Muckenschnabel
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program.
If not, see https://www.gnu.org/licenses/.

Typedef Documentation

◆ core_t

using core_t = void( Context & )

A shortcut for the core code function type.

The core code functions are the C++ implementations of the operators.

Enumeration Type Documentation

◆ AngularUnit

enum class AngularUnit : std::uint8_t

strong

Angular Unit for trigonometric functions.

Enumerator
DEG	degree.
RAD	radian.

Variable Documentation

◆ MAX_SOR_PRECISION

constexpr size_t MAX_SOR_PRECISION = 34

constexpr

Valid decimal digits of a 113 bit mantissa of a 128 bit floating point number.

It's the $\lfloor log_{10}(2^{113})\rfloor$ .

Typedefs

Enumerations