--- /dev/null
+#ifndef MSP_IO_EXCEPT_H_
+#define MSP_IO_EXCEPT_H_
+
+#include <msp/core/except.h>
+
+namespace Msp {
+namespace IO {
+
+class FileNotFound: public Exception
+{
+public:
+ FileNotFound(const std::string &w_, const std::string &f): Exception(w_), filename(f) { }
+ const std::string &get_filename() { return filename; }
+ ~FileNotFound() throw() { }
+private:
+ std::string filename;
+};
+
+} // namespace IO
+} // namespace Msp
+
+#endif