checking the bug reported by Ayat Dawood. It was fixed using his suggestion (if((bdz->r%2)==0) bdz->r+=1; // The new line)

examples/vector_adapter_ex1.c

@@ -3,6 +3,7 @@
 // Create minimal perfect hash function from in-memory vector
 int main(int argc, char **argv)
 { 
+
     // Creating a filled vector
     unsigned int i = 0;
     const char *vector[] = {"aaaaaaaaaa", "bbbbbbbbbb", "cccccccccc", "dddddddddd", "eeeeeeeeee",