Compiler Error C3850
'char': a universal-character-name specifies an invalid character
Characters represented as universal character names must represent valid Unicode code points in the range 0-10FFFF. A universal character name cannot contain a value in the Unicode surrogate range, D800-DFFF, or an encoded surrogate pair. The compiler generates the surrogate pair from a valid code point automatically.
In code compiled as C, a universal character name may not represent a character in the range 0000-009F, inclusive, with the exceptions of 0024 ('$'), 0040 ('@') and 0060 ('`').
In code compiled as C++, a universal character name may use any valid Unicode code point in a string or character literal. Outside of a literal, a universal character name may not represent a control character in the ranges 0000-001F or 007F-009F, both inclusive, or a member of the basic source character set. For more information, see Character Sets.
The following sample generates C3850, and shows how to fix it: