Simplify file structure

src/distance.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <cstdlib>
+#include <glib.h>
+
+class EditDistance {
+public:
+    EditDistance() {
+        currentelements = 2500; // It's enough for most conditions :-)
+        d = static_cast<int *>(malloc(sizeof(int)*currentelements));
+    }
+    ~EditDistance() {
+        if (d != nullptr)
+            free(d);
+    }
+    EditDistance(const EditDistance&) = delete;
+    EditDistance& operator=(const EditDistance&) = delete;
+    int CalEditDistance( const gunichar *s, const gunichar *t, const int limit );
+private:
+    int *d;
+    int currentelements;
+};
+