1 files changed, 5 insertions, 5 deletions
diff --git a/src/sys/sys.h b/src/sys/sys.h
index 66040f0..81eba94 100644
--- a/src/sys/sys.h
+++ b/src/sys/sys.h
@@ -19,18 +19,18 @@
  */
 namespace sys
 {
-typedef void (* signalfunc)(int signum);
+typedef void(* signalfunc)(int signum);
 
-/// check if a path exists and if it is a directory
-bool isdirectory(std::string const &path);
+/// returns true if a path exists and it is a directory
+bool isdirectory(const std::string &path);
 
 /// create a directory
-void mkdir(std::string const &path);
+void mkdir(const std::string &path);
 
 /// intercept OS signals
 void signal(int signum, signalfunc handler);
 
-/** 
+/**
  * @brief operation system exit() application
  * @param status return value
  */