Compile warning

Author: pschatzmann

src/FileSystems/FileSystemMemory.h

@@ -271,10 +271,12 @@ class FileSystemMemory : public FileSystem {
       }
       break;
     case SEEK_END:
-      p_memory->current_pos = p_memory->size - offset;
+      long pos = p_memory->size - offset;
       if (p_memory->current_pos < 0) {
         p_memory->current_pos = 0;
         offset = offset + p_memory->current_pos;
+      } else {
+        p_memory->current_pos = pos;
       }
       break;
     }

src/FileSystems/Registry.h

@@ -88,13 +88,18 @@ struct RegContent {
  */
 struct RegEntry {
   RegEntry() = default;
-  ~RegEntry() {
+  virtual ~RegEntry() {
+    assert(memory_guard==12345);
+#ifdef ESP32
+    assert(heap_caps_check_integrity_all(true));
+#endif
     if (content != nullptr) {
       FS_LOGD("~RegEntry: %s", file_name);
       delete content;
       content = nullptr;
     }
   }
+  int memory_guard = 12345;
   /// reference to the file system
   FileSystem *p_file_system = nullptr;
   /// the name of the file