C Programming on the IBM PC (C Programmers Reference Guide Series)
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The Wide-Character String Functions
There are wide-character versions of the string manipulation functions described in Chapter 7. These are shown in the following table. They use the header <wchar.h>. Note that wcstok( ) requires an additional parameter not used by its char equivalent.
| Function | char Equivalent |
|---|---|
| wchar_t *wcscat(wchar_t *str1, const wchar_t *str2) | strcat( )In C99, str1 and str2 are qualified by restrict. |
| wchar_t *wcschr(const wchar_t *str, wchar_t ch) | strchr( ) |
| int wcscmp(const wchar_t *str1, const wchar_t *str2) | strcmp( ) |
| int wcscoll(const wchar_t *str1, const wchar_t *str2) | strcoll( ) |
| size_t wcscspn(const wchar_t *str1, const wchar_t *str2) | strcspn( ) |
| wchar_t *wcscpy(wchar_t *str1, const wchar_t *str2) | strcpy( )In C99, str1 and str2 are qualified by restrict. |
| size_t wcslen(const wchar_t *str) | strlen( ) |
| wchar_t *wcsncpy(wchar_t *str1, const wchar_t str2, size_t num) | strncpy( )In C99, str1 and str2 are qualified by restrict. |
| wchar_t *wcsncat(wchar_t *str1, const wchar_t str2, size_t num) | strncat( )In C99, str1 and str2 are qualified by restrict. |
| int wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t num) | strncmp( ) |
| wchar_t *wcspbrk(const wchar_t *str1, const wchar_t *str2) | strpbrk( ) |
| wchar_t *wcsrchr(const wchar_t *str, wchar_t ch) | strrchr( ) |
| size_t wcsspn(const wchar_t *str1, const wchar_t *str2) | strspn( ) |
| wchar_t *wcstok(wchar_t *str1, const wchar_t *str2, wchar_t **endptr) | strtok( )Here, endptr is a pointer that holds information necessary to continue the tokenizing process.In C99, str1, str2, and endptr are qualified by restrict. |
| wchar_t *wcsstr(const wchar_t *str1, const wchar_t *str2) | strstr( ) |
| size_t wcsxfrm(wchar_t *str1, const wchar_t *str2, size_t num) | strxfrm( )In C99, str1 and str2 are qualified by restrict. |
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