2 files changed, 10 insertions, 5 deletions
diff --git a/include/exceptions.hpp b/include/exceptions.hpp
index 0469784..4b5fcfa 100644
--- a/include/exceptions.hpp
+++ b/include/exceptions.hpp
@@ -1,4 +1,9 @@
+/* PIA - Lenguajes Modernos de Programación
+ * FACULTAD DE CIENCIAS FÍSICO MATEMÁTICAS
+ * Luis Sebastián Martínez Vega - LCC */
+
 #include <string>
+
 #ifndef EXCEPTIONS_H
 #define EXCEPTIONS_H
 
@@ -6,18 +11,18 @@ class Exception{
 private:
   std::string error_msg;
 public:
-  Exception(const std::string &error_msg);
+  explicit Exception(const std::string &error_msg): error_msg(error_msg){}
   std::string showMsg();
 };
 
 class LexerException: public Exception{
 public:
-  LexerException(const std::string &error_msg): Exception(error_msg){}
+  explicit LexerException(const std::string &error_msg): Exception(error_msg){}
 };
 
 class ParserException: public Exception{
 public:
-  ParserException(const std::string &error_msg): Exception(error_msg){}
+  explicit ParserException(const std::string &error_msg): Exception(error_msg){}
 };
 
 #endif /* EXCEPTIONS_H */
diff --git a/include/lexer.hpp b/include/lexer.hpp
index e674999..27779ea 100644
--- a/include/lexer.hpp
+++ b/include/lexer.hpp
@@ -33,7 +33,7 @@ enum token_type{
 struct Token{
   token_type type;
   std::string value;
-  Token(token_type type, std::string value) : type(type), value(value){}
+  Token(token_type type, const std::string &value) : type(type), value(value){}
 };
 
 class Lexer{
@@ -42,7 +42,7 @@ private:
   std::string text;
   size_t current_char;
   Token current_token;
-  bool matchFunction(std::string function_name);
+  bool matchFunction(const std::string &function_name);
   std::string createNumber();
 public:
   Lexer(std::string text = {});