transform.hpp

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#pragma once
 
#include <ranges>
#include <set>
#include <type_traits>
#include <vector>
 
namespace porytiles {
 
template <typename T, typename F>
[[nodiscard]] auto transform(const std::vector<T> &input, F &&func) -> std::vector<std::invoke_result_t<F, const T &>>
{
    return input | std::views::transform(std::forward<F>(func)) | std::ranges::to<std::vector>();
}
 
template <typename U, typename T>
    requires std::constructible_from<U, T>
[[nodiscard]] auto transform(const std::vector<T> &input) -> std::vector<U>
{
    return input | std::views::transform([](const T &val) { return U(val); }) | std::ranges::to<std::vector>();
}
 
template <typename T, typename F>
[[nodiscard]] auto transform(const std::set<T> &input, F &&func) -> std::set<std::invoke_result_t<F, const T &>>
{
    return input | std::views::transform(std::forward<F>(func)) | std::ranges::to<std::set>();
}
 
template <typename U, typename T>
    requires std::constructible_from<U, T>
[[nodiscard]] auto transform(const std::set<T> &input) -> std::set<U>
{
    return input | std::views::transform([](const T &val) { return U(val); }) | std::ranges::to<std::set>();
}
 
} // namespace porytiles