Add consts

filesystem.cpp

@@ -57,7 +57,7 @@ const char *FSLib::Directory::path() const {
     return dir_path.c_str();
 }
 
-std::string FSLib::Directory::Iterator::operator*() {
+char const *FSLib::Directory::Iterator::operator*() const {
     return current_entry->d_name;
 }
 
@@ -66,7 +66,7 @@ FSLib::Directory::Iterator &FSLib::Directory::Iterator::operator++() {
         return *this;
     current_entry = readdir(d);
     if( current_entry != nullptr && ( !strcmp(current_entry->d_name, ".") || !strcmp(current_entry->d_name, "..") ) )
-        operator++();
+        return operator++();
     return *this;
 }
 
@@ -76,10 +76,10 @@ FSLib::Directory::Iterator FSLib::Directory::Iterator::operator++(int) {
     return ret;
 }
 
-bool FSLib::Directory::Iterator::operator==(const Iterator &i_other) {
+bool FSLib::Directory::Iterator::operator==(const Iterator &i_other) const {
     return i_other.current_entry == current_entry;
 }
 
-bool FSLib::Directory::Iterator::operator!=(const Iterator &i_other) {
+bool FSLib::Directory::Iterator::operator!=(const Iterator &i_other) const {
     return i_other.current_entry != current_entry;
 }

filesystem.hpp

@@ -36,15 +36,15 @@ namespace FSLib{
                 closedir(d);
             }
 
-            std::string operator*();
+            char const *operator*() const;
 
             Iterator &operator++();
 
             Iterator operator++(int);
 
-            bool operator==(const Iterator &i_other);
+            bool operator==(const Iterator &i_other) const;
 
-            bool operator!=(const Iterator &i_other);
+            bool operator!=(const Iterator &i_other) const;
 
         private:
             DIR *d;