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Resizing file content one time if stream is seekable and dynamically otherwise.

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This commit is contained in:
Patrick Lühne 2017-06-20 03:14:51 +02:00
parent 19f2ad19b0
commit ee56a105b3
Signed by: patrick
GPG Key ID: 05F3611E97A70ABF
1 changed files with 14 additions and 6 deletions
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20
lib/tokenize/src/tokenize/Stream.cpp
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@ -30,14 +30,22 @@ void Stream::read(std::string streamName, std::istream &istream)
// Store position of new section // Store position of new section
m_delimiters.push_back({m_stream.size(), streamName}); m_delimiters.push_back({m_stream.size(), streamName});
/*istream.seekg(0, std::ios::end); try
const auto streamSize = istream.tellg(); {
istream.seekg(0, std::ios::beg); istream.seekg(0, std::ios::end);
const auto streamSize = istream.tellg();
istream.seekg(0, std::ios::beg);
const auto startPosition = m_stream.size(); const auto startPosition = m_stream.size();
m_stream.resize(m_stream.size() + streamSize);*/ m_stream.resize(m_stream.size() + streamSize);
std::copy(std::istreambuf_iterator<char>(istream), std::istreambuf_iterator<char>(), std::back_inserter(m_stream)); std::copy(std::istreambuf_iterator<char>(istream), std::istreambuf_iterator<char>(), m_stream.begin() + startPosition);
}
catch (const std::exception &exception)
{
istream.clear();
std::copy(std::istreambuf_iterator<char>(istream), std::istreambuf_iterator<char>(), std::back_inserter(m_stream));
}
} }
//////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////////////////////////