std::literals Symbol Index
From cppreference.com
                    
                                        
                    < cpp | symbol index
                    
                                                            
                    
This page tries to list all the symbols that are available from the standard library in the namespace std::literals. The symbols are written as follows:
-  Function names with 
(). -  Templates with 
<>. 
C S
C S
C
▶ chrono_literals (since C++14)
▶ complex_literals (since C++14)
S
▶ string_literals (since C++14)
▶ string_view_literals (since C++17)