KUMI is a fancy C++20 implementation of a tuple-like class. It tries to be as close to
std::tuple as possible but also wants to compile faster, uses a better C++20 oriented interface,
and new features like:
- a fast to compile tuple implementation
- quality of life improvement over the standard tuple implementation
- algorithm on tuples
See it live on Compiler Explorer
#include <iostream>
#include <kumi/tuple.hpp>
auto get_student(int id)
{
if (id == 0) return kumi::make_tuple(3.8, 'A', "Lisa Simpson");
else if (id == 1) return kumi::make_tuple(2.9, 'C', "Milhouse Van Houten");
else if (id == 2) return kumi::make_tuple(1.7, 'D', "Ralph Wiggum");
else return kumi::make_tuple(0., 'F', "Unknown");
}
int main()
{
auto student0 = get_student(0);
std::cout << "ID: 0, "
<< "GPA: " << kumi::get<0>(student0) << ", "
<< "grade: " << kumi::get<1>(student0) << ", "
<< "name: " << kumi::get<2>(student0) << '\n';
auto [ gpa1, grade1, name1 ] = get_student(1);
std::cout << "ID: 1, "
<< "GPA: " << gpa1 << ", "
<< "grade: " << grade1 << ", "
<< "name: " << name1 << '\n';
std::cout << "\n";
auto all_students = kumi::make_tuple(get_student(0),get_student(1),get_student(2));
kumi::for_each_index( [](auto i, auto const& m) { std::cout << "Data #" << i << " : " << m << "\n";}
, all_students
);
std::cout << "\n";
auto grades = kumi::get<0>(kumi::transpose(all_students));
std::cout << grades << "\n";
}This library is licensed under the MIT License:
Copyright : KUMI Contributors & Maintainers
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the “Software”), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial
portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.