WCHAR_MAX macro — Largest value of a wide character
wchar_t WCHAR_MAX
The WCHAR_MAX macro is the largest value that can be represented by the wchar_t type. It is not necessarily a valid character in the extended character set.
WCHAR_MAX
wchar_t
WCHAR_MIN macro, CHAR_MAX in <climits> , <limits>
CHAR_MAX
<climits>
<limits>