erase() function iter fixess

src/main.c

@@ -99,6 +99,7 @@ clear(Vec8_t* vec)
                         if(!vec->arr) continue;
                         vec->arr[i] = 0;
                 }
+                vec->size = 0;
 	}
         return *vec;
 }
@@ -127,14 +128,12 @@ at(const Vec8_t* vec, const int idx)
 
 Vec8_t*
 erase(Vec8_t* vec, const int iter) {
-        /*
-         * Clear the value at iter to 0
-         * shift all the values in the vector over to the left one
-         * */
         if(vec == nullptr) return nullptr;
         if(vec->arr == nullptr) return nullptr;
+        if(iter >= vec->size) return nullptr;
         vec->arr[iter] = 0;
-        memmove(&vec->arr[iter], &vec->arr[iter + 1], (vec->size * sizeof(char)) -1);
+        memmove(&vec->arr[iter], &vec->arr[iter + 1], (vec->size - iter - 1) * sizeof(char));
+        vec->size--;
         return vec;
 }