The C++ has a number of functions and macros that are available to work with C wide strings. These functions are available to use in a current program after including the header file using - #include <cwchar> or #include <wchar.h>. All functions and macros of this header file are listed below:
| Functions | Description |
|---|
| fgetwc() |
Gets wide character from stream. |
| fgetws() |
Gets wide string from stream. |
| fputwc() |
Writes wide character to stream. |
| fputws() |
Writes wide string to stream. |
| fwide() |
Switches a file stream between wide character I/O and narrow character I/O. |
| fwprintf() |
Writes formatted data to stream. |
| fwscanf() |
Reads formatted data from stream. |
| getwc() |
Gets wide character from stream. |
| getwchar() |
Gets wide character from stdin. |
| putwc() |
Writes wide character to stream. |
| putwchar() |
Writes wide character to stdout. |
| swprintf() |
Writes formatted data to a wide string. |
| swscanf() |
Reads formatted data from string. |
| ungetwc() |
Puts a wide character back into the stream. |
| vfwprintf() |
Writes formatted data from variable argument list to stream |
| vfwscanf() (C++11) |
Reads formatted data from stream into variable argument list |
| vswprintf() (C++11) |
Writes formatted data from variable argument list to sized buffer |
| vswscanf() (C++11) |
Reads formatted data from wide string into variable argument list |
| vwprintf() |
Prints formatted data from variable argument list to stdout |
| vwscanf() (C++11) |
Reads formatted data into variable argument list |
| wprintf() |
Prints formatted data to stdout. |
| wscanf() |
Reads formatted data from stdin. |
| Functions | Description |
|---|
| wcstod() |
Converts wide string to double. |
| wcstof() (C++11) |
Converts wide string to float. |
| wcstol() |
Converts wide string to long integer. |
| wcstold() (C++11) |
Converts wide string to long double. |
| wcstoll() (C++11) |
Converts wide string to long long integer. |
| wcstoul() |
Converts wide string to unsigned long integer. |
| wcstoull() (C++11) |
Converts wide string to unsigned long long integer. |
| Functions | Description |
|---|
| btowc() |
Converts single byte character to wide character. |
| mbrlen() |
Gets length of multibyte character. |
| mbrtowc() |
Convert multibyte sequence to wide character. |
| mbsinit() |
Check if initial conversion state. |
| wcrtomb() |
Converts wide character to multibyte sequence. |
| wctob() |
Converts wide character to single byte. |
| Functions | Description |
|---|
| wcscat() |
Concatenate wide strings. |
| wcschr() |
Searches the first occurrence of a wide character in a wide string. |
| wcscmp() |
Compares two wide strings. |
| wcscoll() |
Compares two wide strings using locale. |
| wcscpy() |
Copy wide string. |
| wcscspn() |
Get span until character in wide string. |
| wcslen() |
Returns the length of a wide string. |
| wmemcmp() |
Compares two blocks of wide characters. |
| wcsncat() |
Append characters from wide string. |
| wcsncmp() |
Compare characters of two wide strings. |
| wcsncpy() |
Copy characters from wide string. |
| wcspbrk() |
Searches the first occurrence of any wide character of a wide string inside another wide string. |
| wcsrchr() |
Searches the last occurrence of a wide character in a wide string. |
| wcsspn() |
Get span of wide character set in wide string. |
| wcsstr() |
Searches the first occurrence of a wide string inside another wide string. |
| wcstok() |
Split a wide string into tokens. |
| wcsxfrm() |
Transform wide string using locale. |
| wmemchr() |
Locate wide character in block of wide characters. |
| wmemcpy() |
Copy block of wide characters. |
| wmemmove() |
Move block of wide characters. |
| wmemset() |
Fill array of wide characters. |
| Functions | Description |
|---|
| wcsftime() |
Formats time as wide string. |
| Types | Description |
|---|
| mbstate_t |
Multibyte conversion state. |
| size_t |
Unsigned integer type. |
| tm |
Time structure. |
| wchar_t |
Wide character type. |
| wint_t |
Wide character integer type. |
| Macros | Description |
|---|
| NULL |
Null pointer. |
| WCHAR_MAX |
Maximum value of wchar_t. |
| WCHAR_MIN |
Minimum value of wchar_t. |
| WEOF |
Wide End-of-File. |
