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-rw-r--r--include/gras/tags.hpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/gras/tags.hpp b/include/gras/tags.hpp
index e3c8982..8214d4e 100644
--- a/include/gras/tags.hpp
+++ b/include/gras/tags.hpp
@@ -40,6 +40,7 @@ struct GRAS_API Tag : boost::less_than_comparable<Tag>
};
GRAS_API bool operator<(const Tag &lhs, const Tag &rhs);
+GRAS_API bool operator==(const Tag &lhs, const Tag &rhs);
/*!
* A stream tag is a commonly used structure