1 files changed, 13 insertions, 0 deletions
diff --git a/validator.h b/validator.h
new file mode 100644
index 0000000..1bdb977
--- /dev/null
+++ b/validator.h
@@ -0,0 +1,13 @@
+#ifndef VALIDATOR_H
+#define VALIDATOR_H
+
+#include <Qt>
+
+class Validator
+{
+public:
+    Validator();
+    virtual bool isValid(qint64 b) const = 0 ;
+};
+
+#endif // VALIDATOR_H