diff --git a/Slang/strops.h b/Slang/strops.h
index 79910c4..47d4d41 100644
--- a/Slang/strops.h
+++ b/Slang/strops.h
@@ -9,30 +9,30 @@ string rtrim(const string& s);
 
 string trim(const string& s);
 
-vector<string> split(string str, char del);
+vector<string> split(const string& str, const char& del);
 
-int count(string str, char ch);
+int count(const string& str, const char& ch);
 
-int countNoOverlap(string str, char ch1, char ch2);
+int countNoOverlap(const string& str, const char& ch1, const char& ch2);
 
-int indexInStr(string str, char ch);
+int indexInStr(const string& str, const char& ch);
 
-int charIndexInVec(vector<string> str, char ch);
+int charIndexInVec(const vector<string>& str, const char& ch);
 
-int countInVector(vector<string> str, string ch);
+int countInVector(const vector<string>& str, const string& ch);
 
-string Vec2Str(vector<string> str);
+string Vec2Str(const vector<string>& str);
 
-vector<string> removeTabs(vector<string> str, int amnt);
+vector<string> removeTabs(const vector<string>& str, const int& amnt);
 
-vector<string> rangeInVec(vector<string> str, int min, int max);
+vector<string> rangeInVec(const vector<string>& str, const int& min, const int& max);
 
-string rangeInStr(string str, int min, int max);
+string rangeInStr(const string& str, const int& min, const int& max);
 
-string unWrapVec(vector<string> vec);
+string unWrapVec(const vector<string>& vec);
 
-float floatval(string s);
+float floatval(const string& s);
 
-string replace(string str, string strToReplace, string replaceWith);
+string replace(const string& str, const string& strToReplace, const string& replaceWith);
 
-#endif
\ No newline at end of file
+#endif