Null-terminated wide strings
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
<cwctype> | |
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 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 LC_CTYPE category (function) | |
looks up a character classification category in the current C locale (function) | |
Character manipulation | |
Defined in header
<cwctype> | |
converts a wide character to lowercase (function) | |
converts a wide character to uppercase (function) | |
performs character mapping according to the specified LC_CTYPE mapping category (function) | |
looks up a character mapping category in the current C locale (function) |
ASCII values (hex) |
characters | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 - 8 | 0x00-0x08
|
control codes (NUL , etc.)
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
9 | 0x09
|
tab (\t )
|
≠0
|
0
|
≠0
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
10 - 13 | 0x0A-0x0D
|
whitespaces (\n ,\v ,\f ,\r )
|
≠0
|
0
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
14 - 31 | 0x0E-0x1F
|
control codes | ≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
32 | 0x20
|
space | 0
|
≠0
|
≠0
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
33 - 47 | 0x21-0x2F
|
!"#$%&'()*+,-./
|
0
|
≠0
|
0
|
0
|
≠0
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
48 - 57 | 0x30-0x39
|
0123456789
|
0
|
≠0
|
0
|
0
|
≠0
|
0
|
≠0
|
0
|
0
|
0
|
≠0
|
≠0
|
58 - 64 | 0x3a-0x40
|
:;<=>?@
|
0
|
≠0
|
0
|
0
|
≠0
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
65 - 70 | 0x41-0x46
|
ABCDEF
|
0
|
≠0
|
0
|
0
|
≠0
|
0
|
≠0
|
≠0
|
≠0
|
0
|
0
|
≠0
|
71 - 90 | 0x47-0x5A
|
GHIJKLMNOPQRSTUVWXYZ
|
0
|
≠0
|
0
|
0
|
≠0
|
0
|
≠0
|
≠0
|
≠0
|
0
|
0
|
0
|
91 - 96 | 0x5B-0x60
|
[\]^_`
|
0
|
≠0
|
0
|
0
|
≠0
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
97 -102 | 0x61-0x66
|
abcdef
|
0
|
≠0
|
0
|
0
|
≠0
|
0
|
≠0
|
≠0
|
0
|
≠0
|
0
|
≠0
|
103-122 | 0x67-0x7A
|
ghijklmnopqrstuvwxyz
|
0
|
≠0
|
0
|
0
|
≠0
|
0
|
≠0
|
≠0
|
0
|
≠0
|
0
|
0
|
123-126 | 0x7B-0x7E
|
{|}~
|
0
|
≠0
|
0
|
0
|
≠0
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
127 | 0x7F
|
backspace character (DEL )
|
≠0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
Conversions to numeric formats | |
Defined in header
<cwchar> | |
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
<cinttypes> | |
(C++11)(C++11) |
converts a wide string to std::intmax_t or std::uintmax_t (function) |
String manipulation | |
Defined in header
<cwchar> | |
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
<cwchar> | |
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
<cwchar> | |
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
<cwctype> | |
wctrans_t
|
scalar type that holds locale-specific character mapping |
wctype_t
|
scalar type that holds locale-specific character classification |
wint_t
|
integer type that can hold any valid wide character and at least one more value |
Macros
Defined in header
<cwchar> | |
WEOF |
a non-character value of type 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
C documentation for Null-terminated wide strings
|