diff options
Diffstat (limited to 'ctype/ctype.h')
| -rw-r--r-- | ctype/ctype.h | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/ctype/ctype.h b/ctype/ctype.h index 52bb56eeec..de7ca1e355 100644 --- a/ctype/ctype.h +++ b/ctype/ctype.h @@ -82,9 +82,6 @@ extern __const __int32_t *__ctype_toupper; /* Case conversions. */ #define __isascii(c) (((c) & ~0x7f) == 0) /* If C is a 7 bit value. */ #define __toascii(c) ((c) & 0x7f) /* Mask off high bits. */ -#define __tolower(c) ((int) __ctype_tolower[(int) (c)]) -#define __toupper(c) ((int) __ctype_toupper[(int) (c)]) - #define __exctype(name) extern int name __P ((int)) /* The following names are all functions: @@ -128,7 +125,8 @@ extern int toascii __P ((int __c)); #endif /* Use SVID or use misc. */ #if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN -/* These are the same as `toupper' and `tolower'. */ +/* These are the same as `toupper' and `tolower' except that they do not + check the argument for being in the range of a `char'. */ __exctype (_toupper); __exctype (_tolower); #endif @@ -151,26 +149,47 @@ __exctype (_tolower); #endif #if defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__ \ - && defined __USE_EXTERN_INLINES + && defined __USE_EXTERN_INLINES extern __inline int tolower (int __c) { - return __c >= -128 && __c < 256 ? __tolower (__c) : __c; + return __c >= -128 && __c < 256 ? __ctype_tolower[__c] : __c; } extern __inline int toupper (int __c) { - return __c >= -128 && __c < 256 ? __toupper (__c) : __c; + return __c >= -128 && __c < 256 ? __ctype_toupper[__c] : __c; } #endif +#if __GNUC__ >= 2 && defined __OPTIMIZE__ +# define __tobody(c, f, a) \ + ({ int __res; \ + if (sizeof (c) > 1) \ + { \ + if (__builtin_constant_p (c)) \ + { \ + int __c = (c); \ + __res = __c < -128 || __c > 255 ? __c : a[__c]; \ + } \ + else \ + __res = f (c); \ + } \ + else \ + __res = a[(int) (c)]; \ + __res; }) + +# define tolower(c) __tobody (c, tolower, __ctype_tolower) +# define toupper(c) __tobody (c, toupper, __ctype_toupper) +#endif /* Optimizing gcc */ + #if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN -# define isascii(c) __isascii(c) -# define toascii(c) __toascii(c) +# define isascii(c) __isascii (c) +# define toascii(c) __toascii (c) -# define _tolower(c) __tolower(c) -# define _toupper(c) __toupper(c) +# define _tolower(c) ((int) __ctype_tolower[(int) (c)]) +# define _toupper(c) ((int) __ctype_toupper[(int) (c)]) #endif #endif /* Not __NO_CTYPE. */ |