Files
yaml-cpp/src/streamcharsource.h
Ted Lyngmo 9ab22ef493 Make SettingChange and StreamCharSourcemove constructors and assignment operators noexcept (#808)
The explicitly defaulted or implemented move constructors and assignment
operators are made "noexcept".

Bugfix:
* src/stream.cpp Stream::Stream() char_traits::int_type intro[4] is
  now aggregate-initialized (to zero) to avoid UB.

Minor changes:
* Using std::isinf() and std::signbit() instead of comparing for
  equality with infinity.
* src/streamcharsource.h: Added #include "stream.h".
* src/stream.h: Forward declaring "class StreamCharSource".
* Some implicit casting changed into static_cast's.

Signed-off-by: Ted Lyngmo <ted@lyncon.se>
2020-02-04 16:58:00 -06:00

51 lines
1.5 KiB
C++

#ifndef STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
#define STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
#if defined(_MSC_VER) || \
(defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
(__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
#pragma once
#endif
#include "yaml-cpp/noexcept.h"
#include "stream.h"
#include <cstddef>
namespace YAML {
class StreamCharSource {
public:
StreamCharSource(const Stream& stream) : m_offset(0), m_stream(stream) {}
StreamCharSource(const StreamCharSource& source) = default;
StreamCharSource(StreamCharSource&&) YAML_CPP_NOEXCEPT = default;
StreamCharSource& operator=(const StreamCharSource&) = delete;
StreamCharSource& operator=(StreamCharSource&&) = delete;
~StreamCharSource() = default;
operator bool() const;
char operator[](std::size_t i) const { return m_stream.CharAt(m_offset + i); }
bool operator!() const { return !static_cast<bool>(*this); }
const StreamCharSource operator+(int i) const;
private:
std::size_t m_offset;
const Stream& m_stream;
};
inline StreamCharSource::operator bool() const {
return m_stream.ReadAheadTo(m_offset);
}
inline const StreamCharSource StreamCharSource::operator+(int i) const {
StreamCharSource source(*this);
if (static_cast<int>(source.m_offset) + i >= 0)
source.m_offset += static_cast<std::size_t>(i);
else
source.m_offset = 0;
return source;
}
} // namespace YAML
#endif // STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66