47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#pragma once
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#ifndef STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#define STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#include "noncopyable.h"
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#include <cstddef>
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namespace YAML
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{
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class StreamCharSource
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{
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public:
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StreamCharSource(const Stream& stream): m_offset(0), m_stream(stream) {}
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StreamCharSource(const StreamCharSource& source): m_offset(source.m_offset), m_stream(source.m_stream) {}
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~StreamCharSource() {}
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operator bool() const;
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char operator [] (std::size_t i) const { return m_stream.CharAt(m_offset + i); }
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bool operator !() const { return !static_cast<bool>(*this); }
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const StreamCharSource operator + (int i) const;
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private:
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std::size_t m_offset;
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const Stream& m_stream;
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StreamCharSource& operator = (const StreamCharSource&); // non-assignable
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};
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inline StreamCharSource::operator bool() const {
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return m_stream.ReadAheadTo(m_offset);
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}
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inline const StreamCharSource StreamCharSource::operator + (int i) const {
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StreamCharSource source(*this);
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if(static_cast<int> (source.m_offset) + i >= 0)
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source.m_offset += i;
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else
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source.m_offset = 0;
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return source;
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}
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}
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#endif // STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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