Stream.h

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#pragma once

#include <memory>
#include "IOBase.h"

namespace WorldStone
{

class IStream : public IOBase
{
public:
    bool                 eof() const { return (_state & eofbit) != 0; }

    enum seekdir
    {
        beg,
        cur,
        end
    };
    virtual long size() = 0;
    virtual size_t read(void* buffer, size_t size) = 0;

    template<typename T>
    bool readRaw(T& out)
    {
        static_assert(std::is_trivially_copyable<T>::value,
                      "The type must be trivially copyable to access it as byte storage");
        return sizeof(out) == read(&out, sizeof(out));
    }
    virtual int getc();
    virtual long tell() = 0;
    virtual bool seek(long offset, seekdir origin) = 0;

    virtual ~IStream();
};

using StreamPtr = std::unique_ptr<IStream>;
}