From cppreference.com
A null-terminated wide string is a sequence of valid wide characters, ending with a null character.
Functions
Character classification Defined in header
checks if a wide character is alphanumeric
(function)
checks if a wide character is alphabetic
(function)
checks if a wide character is lowercase
(function)
checks if a wide character is an uppercase character
(function)
checks if a wide character is a digit
(function)
checks if a wide character is a hexadecimal character
(function)
checks if a wide character is a control character
(function)
checks if a wide character is a graphical character
(function)
checks if a wide character is a space character
(function)
(C++11)
checks if a wide character is a blank character
(function)
checks if a wide character is a printing character
(function)
checks if a wide character is a punctuation character
(function)
classifies a wide character according to the specified
category
(function)
looks up a character classification category in the current C locale
(function)
Character manipulation Defined in header
converts a wide character to lowercase
(function)
converts a wide character to uppercase
(function)
performs character mapping according to the specified
mapping category
(function)
looks up a character mapping category in the current C locale
(function)
ASCII values characters
decimal hexadecimal octal 0–8 \x0–\x8\0–\10control codes (NUL, etc.) ≠0000000000009 \x9\11tab (\t) ≠00≠0≠00000000010–13 \xA–\xD\12–\15whitespaces (\n, \v, \f, \r) ≠00≠000000000014–31 \xE–\x1F\16–\37control codes ≠00000000000032 \x20\40space 0≠0≠0≠00000000033–47 \x21–\x2F\41–\57!"#$%&'()*+,-./0≠000≠0≠000000048–57 \x30–\x39\60–\7101234567890≠000≠00≠0000≠0≠058–64 \x3A–\x40\72–\100:;<=>?@0≠000≠0≠000000065–70 \x41–\x46\101–\106ABCDEF0≠000≠00≠0≠0≠000≠071–90 \x47–\x5A\107–\132GHIJKLMNOP
QRSTUVWXYZ0≠000≠00≠0≠0≠000091–96 \x5B–\x60\133–\140[\]^_`0≠000≠0≠000000097–102 \x61–\x66\141–\146abcdef0≠000≠00≠0≠00≠00≠0103–122 \x67–\x7A\147–\172ghijklmnop
qrstuvwxyz0≠000≠00≠0≠00≠000123–126 \x7B–\x7E\172–\176{|}~0≠000≠0≠0000000127 \x7F\177backspace character (DEL) ≠000000000000 Conversions to numeric formats Defined in header
converts a wide string to an integer value
(function)
converts a wide string to an unsigned integer value
(function)
converts a wide string to a floating-point value
(function)
Defined in header
(C++11)(C++11)
converts a wide string to
or
(function)
String manipulation Defined in header
copies one wide string to another
(function)
copies a certain amount of wide characters from one string to another
(function)
appends a copy of one wide string to another
(function)
appends a certain amount of wide characters from one wide string to another
(function)
transform a wide string so that wcscmp would produce the same result as wcscoll
(function)
String examination Defined in header
returns the length of a wide string
(function)
compares two wide strings
(function)
compares a certain amount of characters from two wide strings
(function)
compares two wide strings in accordance to the current locale
(function)
finds the first occurrence of a wide character in a wide string
(function)
finds the last occurrence of a wide character in a wide string
(function)
returns the length of the maximum initial segment that consists
of only the wide characters found in another wide string
(function)
returns the length of the maximum initial segment that consists
of only the wide not found in another wide string
(function)
finds the first location of any wide character in one wide string, in another wide string
(function)
finds the first occurrence of a wide string within another wide string
(function)
finds the next token in a wide string
(function)
Wide character array manipulation Defined in header
copies a certain amount of wide characters between two non-overlapping arrays
(function)
copies a certain amount of wide characters between two, possibly overlapping, arrays
(function)
compares a certain amount of wide characters from two arrays
(function)
finds the first occurrence of a wide character in a wide character array
(function)
copies the given wide character to every position in a wide character array
(function)
Types
Defined in header
wctrans_t
scalar type that holds locale-specific character mapping
(typedef)wctype_t
scalar type that holds locale-specific character classification
(typedef)Defined in header
Defined in header
wint_t
integer type that can hold any valid wide character and at least one more value
(typedef)Macros
WEOF
a non-character value of type std::wint_t used to indicate errors
(macro constant)WCHAR_MIN
the smallest valid value of wchar_t
(macro constant)WCHAR_MAX
the largest valid value of wchar_t
(macro constant)See also