How to write an unsigned short int literal?

Question

42 as unsigned int is well defined as \"42U\".

unsigned int foo = 42U; // yeah!

How can I write \"23\" so that it is clear it is an

Answer 1

at least in Visual Studio (at least 2013 and newer) you can write

23ui16

for get an constant of type unsigned short.

see definitions of INT8_MIN, INT8_MAX, INT16_MIN, INT16_MAX, etc. macros in stdint.h

I don't know at the moment whether this is part of the standard C/C++