streamcharsource.h
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00001 #ifndef STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66_PM
00002 #define STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66_PM
00003 
00004 #if defined(_MSC_VER) || (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
00005 #pragma once
00006 #endif
00007 
00008 
00009 #include "yaml-cpp-pm/noncopyable.h"
00010 #include <cstddef>
00011 
00012 namespace YAML_PM
00013 {
00014         class StreamCharSource
00015         {
00016         public:
00017                 StreamCharSource(const Stream& stream): m_offset(0), m_stream(stream) {}
00018                 StreamCharSource(const StreamCharSource& source): m_offset(source.m_offset), m_stream(source.m_stream) {}
00019                 ~StreamCharSource() {}
00020 
00021                 operator bool() const;
00022                 char operator [] (std::size_t i) const { return m_stream.CharAt(m_offset + i); }
00023                 bool operator !() const { return !static_cast<bool>(*this); }
00024 
00025                 const StreamCharSource operator + (int i) const;
00026                         
00027         private:
00028                 std::size_t m_offset;
00029                 const Stream& m_stream;
00030 
00031                 StreamCharSource& operator = (const StreamCharSource&); // non-assignable
00032         };
00033         
00034         inline StreamCharSource::operator bool() const {
00035                 return m_stream.ReadAheadTo(m_offset);
00036         }
00037         
00038         inline const StreamCharSource StreamCharSource::operator + (int i) const {
00039                 StreamCharSource source(*this);
00040                 if(static_cast<int> (source.m_offset) + i >= 0)
00041                         source.m_offset += i;
00042                 else
00043                         source.m_offset = 0;
00044                 return source;
00045         }
00046 }
00047 
00048 #endif // STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66_PM


libpointmatcher
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autogenerated on Mon Sep 14 2015 02:59:06