797 B
797 B
[usrlit.suffix]
16 Library introduction [library]
16.4 Library-wide requirements [requirements]
16.4.5 Constraints on programs [constraints]
16.4.5.3 Reserved names [reserved.names]
16.4.5.3.6 User-defined literal suffixes [usrlit.suffix]
Literal suffix identifiers ([over.literal]) that do not start with an underscore are reserved for future standardization.
Literal suffix identifiers that contain a double underscore__are reserved for use by C++ implementations.