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LibC: Primitively implement wcsxfrm

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The `wcsxfrm` function copies a wide character string into a buffer,
such that comparing the new string against any similarly pre-processed
string with `wcscmp` produces the same result as if the original strings
were compared with `wcscoll`.

Our current `wcscoll` implementation is simply an alias for `wcscmp`, so
`wcsxfrm` needs to perform no actions other than copying the string.
This commit is contained in:
Daniel Bertalan 2021-10-16 10:40:27 +02:00 • committed by Linus Groh
parent 13e6d9d71a
commit 95c32fdf19
2 changed files with 7 additions and 0 deletions
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Userland/Libraries/LibC/wchar.h
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@ -44,6 +44,7 @@ size_t mbrtowc(wchar_t*, const char*, size_t, mbstate_t*);
size_t mbrlen(const char*, size_t, mbstate_t*);
size_t wcrtomb(char*, wchar_t, mbstate_t*);
int wcscoll(const wchar_t*, const wchar_t*);
size_t wcsxfrm(wchar_t*, const wchar_t*, size_t);
int wctob(wint_t);
int mbsinit(const mbstate_t*);
wchar_t* wcspbrk(const wchar_t*, const wchar_t*);