diff --git a/include/popl.hpp b/include/popl.hpp
index 8fd668b..8912438 100644
--- a/include/popl.hpp
+++ b/include/popl.hpp
@@ -380,6 +380,16 @@ class OptionParser
     template <typename T>
     std::shared_ptr<T> get_option(char short_name) const;
 
+    /// Check if an option is set by it's long name
+    /// @param the Option's long name
+    /// @return true if set at least once
+    bool is_set(const std::string& long_name) const;
+
+    /// Check if an option is set by it's short name
+    /// @param the Option's long name
+    /// @return true if set at least once
+    bool is_set(char short_name) const;
+
 protected:
     std::vector<Option_ptr> options_;
     std::string description_;
@@ -940,6 +950,18 @@ inline std::shared_ptr<T> OptionParser::get_option(char short_name) const
     return result;
 }
 
+bool OptionParser::is_set(const std::string& long_name) const
+{
+    Option_ptr option = find_option(long_name);
+    return option && option->is_set();
+}
+	
+bool OptionParser::is_set(char short_name) const
+{
+    Option_ptr option = find_option(short_name);
+    return option && option->is_set();
+}
+
 inline void OptionParser::parse(const std::string& ini_filename)
 {
     std::ifstream file(ini_filename.c_str());