utils.h

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// Copyright © 2008-2024 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#ifndef _UTILS_H
#define _UTILS_H
 
#include "core/Log.h"
#include "core/StringUtils.h"
#include "core/macros.h"
 
#include "profiler/Profiler.h"
 
// An adaptor for automagic reverse range-for iteration of containers
// One might be able to specialize this for raw arrays, but that's beyond the
// point of its use-case.
// One might also point out that this is surely more work to code than simply
// writing an explicit iterator loop, to which I say: bah humbug!
template <typename T>
struct reverse_container_t {
    using iterator = typename T::reverse_iterator;
    using const_iterator = typename T::const_reverse_iterator;
 
    using value_type = typename std::remove_reference<T>::type;
 
    reverse_container_t(value_type &ref) :
        ref(ref) {}
 
    iterator begin() { return ref.rbegin(); }
    const_iterator begin() const { return ref.crbegin(); }
 
    iterator end() { return ref.rend(); }
    const_iterator end() const { return ref.crend(); }
 
private:
    value_type &ref;
};
 
// Use this function for automatic template parameter deduction
template <typename T>
reverse_container_t<T> reverse_container(T &ref) { return reverse_container_t<T>(ref); }
 
#endif /* _UTILS_H */