diff options
Diffstat (limited to 'wctype')
| -rw-r--r-- | wctype/wcfuncs.c | 6 | ||||
| -rw-r--r-- | wctype/wctype.h | 16 |
2 files changed, 20 insertions, 2 deletions
diff --git a/wctype/wcfuncs.c b/wctype/wcfuncs.c index 30836edb9b..2f60c4a650 100644 --- a/wctype/wcfuncs.c +++ b/wctype/wcfuncs.c @@ -25,6 +25,8 @@ /* If the program is compiled without optimization the following declaration is not visible in the header. */ extern unsigned int *__ctype32_b; +extern const uint32_t *__ctype32_toupper; +extern const uint32_t *__ctype32_tolower; /* Provide real-function versions of all the wctype macros. */ @@ -76,7 +78,7 @@ wint_t /* Character is not known. Default action is to simply return it. */ return wc; - return (wint_t) __ctype_tolower[idx]; + return (wint_t) __ctype32_tolower[idx]; } wint_t @@ -90,5 +92,5 @@ wint_t /* Character is not known. Default action is to simply return it. */ return wc; - return (wint_t) __ctype_toupper[idx]; + return (wint_t) __ctype32_toupper[idx]; } diff --git a/wctype/wctype.h b/wctype/wctype.h index 378095bcb4..2a4caddd90 100644 --- a/wctype/wctype.h +++ b/wctype/wctype.h @@ -238,6 +238,22 @@ extern wint_t towupper (wint_t __wc) __THROW; /* Map the wide character WC using the mapping described by DESC. */ extern wint_t __towctrans (wint_t __wc, wctrans_t __desc) __THROW; +#if __GNUC__ >= 2 && defined __OPTIMIZE__ +/* The tables are always organized in a way which allows direct access + for single byte characters. */ +extern const wint_t *__ctype32_tolower; +extern const wint_t *__ctype32_toupper; + +# define towlower(wc) \ + (__builtin_constant_p (wc) && (wc) >= L'\0' && (wc) <= L'\xff' \ + ? (wint_t) __ctype32_tolower[wc] : towlower (wc)) + +# define towupper(wc) \ + (__builtin_constant_p (wc) && (wc) >= L'\0' && (wc) <= L'\xff' \ + ? (wint_t) __ctype32_toupper[wc] : towupper (wc)) + +#endif /* gcc && optimizing */ + __END_DECLS #endif /* need iswxxx. */ |