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Add function to check reader's existing in FilesContainerR.

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vng 2011-08-25 16:54:27 +03:00 • committed by Alex Zolotarev
parent 91909c8126
commit d38ed958ee
2 changed files with 10 additions and 0 deletions
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8
coding/file_container.cpp
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@ -60,6 +60,14 @@ FilesContainerR::ReaderT FilesContainerR::GetReader(Tag const & tag) const
MYTHROW(Reader::OpenException, (tag));
}
bool FilesContainerR::IsReaderExist(Tag const & tag) const
{
InfoContainer::const_iterator i =
lower_bound(m_info.begin(), m_info.end(), tag, LessInfo());
return (i != m_info.end() && i->m_tag == tag);
}
/////////////////////////////////////////////////////////////////////////////
// FilesContainerW
/////////////////////////////////////////////////////////////////////////////

2
coding/file_container.hpp
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@ -90,6 +90,8 @@ public:
ReaderT GetReader(Tag const & tag) const;
bool IsReaderExist(Tag const & tag) const;
template <typename F> void ForEachTag(F f) const
{
for (size_t i = 0; i < m_info.size(); ++i)