SyringeEx/FindFile.h at master · Phobos-developers/SyringeEx · GitHub

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#pragma once

#include "Handle.h"

#include <utility>

class FindFile
{
public:
    FindFile() = default;

    explicit FindFile(char const* fileName) noexcept
        : Handle(FindFirstFile(fileName, &this->Data))
    {
    }

    explicit operator bool() const noexcept
    {
        return static_cast<bool>(this->Handle);
    }

    FindFile& operator++() noexcept
    {
        if (this->Handle)
        {
            if (FindNextFile(this->Handle, &this->Data) == FALSE)
            {
                this->Handle.clear();
            }
        }
        return *this;
    }

    WIN32_FIND_DATA const* operator->() const noexcept
    {
        return &this->Data;
    }

    WIN32_FIND_DATA const& operator*() const noexcept
    {
        return this->Data;
    }

private:
    FindHandle Handle;
    WIN32_FIND_DATA Data;
};