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-rw-r--r--src/lib/asiolink/io_address.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lib/asiolink/io_address.h b/src/lib/asiolink/io_address.h
index c793b45c8d..684a7b1a79 100644
--- a/src/lib/asiolink/io_address.h
+++ b/src/lib/asiolink/io_address.h
@@ -238,8 +238,10 @@ public:
/// @brief Subtracts one address from another (a - b)
///
/// Treats addresses as integers and subtracts them. For example:
+ /// @code
/// 192.0.2.5 - 192.0.2.0 = 0.0.0.5
/// fe80::abcd - fe80:: = ::abcd
+ /// @endcode
///
/// It is possible to subtract greater from lesser address, e.g.
/// 192.168.56.10 - 192.168.67.20, but please do understand that