diff --git a/filesystem.hpp b/filesystem.hpp
index 9eb0a73..54d49e3 100644
--- a/filesystem.hpp
+++ b/filesystem.hpp
@@ -1,27 +1,20 @@
 #ifndef FSLIB_H
 #define FSLIB_H
 
-#include <string.h>
+#include <cstring>
 #include <string>
 
 #ifdef _WIN32
 
 #include <Windows.h>
 
-#else
-
-#include <dirent.h>
-
-#endif
-
-// set apropriate data types for each operating system
-#ifdef _WIN32
-
 using string = std::wstring;
 using char_t = wchar_t;
 
 #else
 
+#include <dirent.h>
+
 using string = std::string;
 using char_t = char;
 
diff --git a/unix/filesystem.cpp b/unix/filesystem.cpp
index 43df3e0..f0019ae 100644
--- a/unix/filesystem.cpp
+++ b/unix/filesystem.cpp
@@ -6,6 +6,8 @@ FSLib::Directory::Directory( const string &path_ ) : dir_path( path_ ) {}
 FSLib::Directory::Iterator::Iterator( const Directory &d_ )
         : d( opendir( d_.path() ) ) {
     current_entry = readdir( d );
+
+    // skip "." and ".."
     if ( current_entry != nullptr &&
          ( !strcmp( current_entry->d_name, "." ) ||
            !strcmp( current_entry->d_name, ".." ) ) )
@@ -26,9 +28,7 @@ bool FSLib::exists( const string &path ) {
 }
 
 string FSLib::canonical( const string &path ) {
-
     char_t *canonical_path = new char_t[PATH_MAX];
-
     auto failed = realpath( path.c_str(), canonical_path ) == nullptr;
 
     if ( failed ) {