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Add operator<< for std::map

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This is to allow chaining inserts and to avoid temporary variables when inserting maps returned from functions.
This commit is contained in:
Allan Odgaard
2013-05-09 22:40:35 +07:00
parent 92192341d4
commit 58cfa20a1b
1 changed files with 7 additions and 0 deletions
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7
Shared/include/oak/algorithm.h
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@@ -57,4 +57,11 @@ namespace oak
}
};
template <typename _SrcKeyT, typename _SrcValueT, typename _DstKeyT, typename _DstValueT>
std::map<_SrcKeyT, _SrcValueT>& operator<< (std::map<_DstKeyT, _DstValueT>& dst, std::map<_SrcKeyT, _SrcValueT> const& src)
{
dst.insert(src.begin(), src.end());
return dst;
}
#endif /* end of include guard: OAK_ALGORITHM_H_E3HYH9S3 */