Raw string literals and file codification

Question

C++11 introduced the raw string literals which can be pretty useful to represent quoted strings, literals with lots of special symbols like windows file paths, regex express

Answer 1

Raw string literals change how escapes are dealt with but do not change how encodings are handled. Raw string literals still convert their contents from the source encoding to produce a string in the appropriate execution encoding.

The type of a string literal and the appropriate execution encoding is determined entirely by the prefix. R alone always produces a char string in the narrow execution encoding. If the source is UTF-16 (and the compiler supports UTF-16 as the source encoding) then the compiler will convert the string literal contents from UTF-16 to the narrow execution encoding.