Chapter 6. LOCALE technology

57

There are two types for wide characters:

wchar_t

and

wint_t

.

wchar_t

is a type which can

contain one wide character. It is just like 'char' type can be used for contain one character.

wint_t

can contain one wide character or

WEOF

, an substitution of

EOF

.

A string of wide characters is achieved by an array of

wchar_t

, just like a string of characters is

achieved by an array of

char

.

There are functions for

wchar_t

, substitute for functions for

char

.

strcat()

,

strncat()

 >

wcscat()

,

wcsncat()

strcpy()

,

strncpy()

 >

wcscpy()

,

wcsncpy()

strcmp()

,

strncmp()

 >

wcscmp()

,

wcsncmp()

strcasecmp()

,

strncasecmp()

 >

wcscasecmp()

,

wcsncasecmp()

strcoll()

,

strxfrm()

 >

wcscoll()

,

wcsxfrm()

strchr()

,

strrchr()

 >

wcschr()

,

wcsrchr()

strstr()

,

strpbrk()

 >

wcsstr()

,

wcspbrk()

strtok()

,

strspn()

,

strcspn()

 >

wcstok()

,

wcsspn()

,

wcscspn()

strtol()

,

strtoul()

,

strtod()

 >

wcstol()

,

wcstoul()

,

wcstod()

strftime()

 >

wcsftime()

strlen()

 >

wcslen()

toupper()

,

tolower()

 >

towupper()

,

towlower()

isalnum()

,

isalpha()

,

isblank()

,

iscntrl()

,

isdigit()

,

isgraph()

,

islower()

,

isprint()

,

ispunct()

,

isspace()

,

isupper()

,

isxdigit()

 >

iswalnum()

,

iswalpha()

,

iswblank()

,

iswcntrl()

,

iswdigit()

,

iswgraph()

,

iswlower()

,

iswprint()

,

iswpunct()

,

iswspace()

,

iswupper()

,

iswxdigit()

(

isascii()

doesn't have its wide character

version).

memset()

,

memcpy()

,

memmove

,

memmove()

,

memchr()

 >

wmemset()

,

wmemcpy()

,

wmemmove

,

wmemmove()

,

wmemchr()

There are additional functions for

wchar_t

.

wcwidth()

,

wcswidth()

wctrans()

,

towctrans()