implement alphabet for sequence

[mussa.git] / mussa_exceptions.hpp

diff --git a/mussa_exceptions.hpp b/mussa_exceptions.hpp
index 9adb5299f58dee677f2633f03488e163e69f91fb..065347a6b52ec8eb98eb48b5eb6b981d909a8a5e 100644 (file)
--- a/mussa_exceptions.hpp
+++ b/mussa_exceptions.hpp
@@ -55,7 +55,13 @@ public:
     sequence_load_error(msg) {};
 };
 
-
+// Empty unrecognized characters
+class sequence_invalid_load_error : public sequence_load_error 
+{
+public:
+  explicit sequence_invalid_load_error(const std::string& msg) :
+    sequence_load_error(msg) {};
+};
 //! failure running analysis
 class mussa_analysis_error : public mussa_error
 {