tvl-depot/third_party/immer/example/vector/fizzbuzz.cpp

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//
// immer: immutable data structures for C++
// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
//
// This software is distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
//
#include <immer/vector.hpp>
#include <iostream>
#include <string>
// include:fizzbuzz/start
immer::vector<std::string>
fizzbuzz(immer::vector<std::string> v, int first, int last)
{
for (auto i = first; i < last; ++i)
v = std::move(v).push_back(
i % 15 == 0 ? "FizzBuzz"
: i % 5 == 0 ? "Bizz"
: i % 3 == 0 ? "Fizz" :
/* else */ std::to_string(i));
return v;
}
// include:fizzbuzz/end
int main()
{
auto v = fizzbuzz({}, 0, 100);
std::copy(v.begin(),
v.end(),
std::ostream_iterator<std::string>{std::cout, "\n"});
}