diff options
Diffstat (limited to 'ctype/ctype.h')
| -rw-r--r-- | ctype/ctype.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/ctype/ctype.h b/ctype/ctype.h index 64f5e4b7a0..28aec6bc41 100644 --- a/ctype/ctype.h +++ b/ctype/ctype.h @@ -62,6 +62,24 @@ enum }; #endif /* ! _ISbit */ +/* These are defined in ctype-info.c. + The declarations here must match those in localeinfo.h. + + These point into arrays of 384, so they can be indexed by any `unsigned + char' value [0,255]; by EOF (-1); or by any `signed char' value + [-128,-1). ISO C requires that the ctype functions work for `unsigned + char' values and for EOF; we also support negative `signed char' values + for broken old programs. The case conversion arrays are of `int's + rather than `unsigned char's because tolower (EOF) must be EOF, which + doesn't fit into an `unsigned char'. But today more important is that + the arrays are also used for multi-byte character sets. */ +extern __const unsigned short int *__ctype_b; /* Characteristics. */ +extern __const __int32_t *__ctype_tolower; /* Case conversions. */ +extern __const __int32_t *__ctype_toupper; /* Case conversions. */ + +#define __isctype(c, type) \ + (__ctype_b[(int) (c)] & (unsigned short int) type) + #define __isascii(c) (((c) & ~0x7f) == 0) /* If C is a 7 bit value. */ #define __toascii(c) ((c) & 0x7f) /* Mask off high bits. */ @@ -144,10 +162,49 @@ __exctype (_tolower); __res; })) #if !defined __NO_CTYPE && !defined __cplusplus +# define isalnum(c) __isctype((c), _ISalnum) +# define isalpha(c) __isctype((c), _ISalpha) +# define iscntrl(c) __isctype((c), _IScntrl) +# define isdigit(c) __isctype((c), _ISdigit) +# define islower(c) __isctype((c), _ISlower) +# define isgraph(c) __isctype((c), _ISgraph) +# define isprint(c) __isctype((c), _ISprint) +# define ispunct(c) __isctype((c), _ISpunct) +# define isspace(c) __isctype((c), _ISspace) +# define isupper(c) __isctype((c), _ISupper) +# define isxdigit(c) __isctype((c), _ISxdigit) + +# ifdef __USE_ISOC99 +# define isblank(c) __isctype((c), _ISblank) +# endif + +# ifdef __USE_EXTERN_INLINES +extern __inline int +tolower (int __c) __THROW +{ + return __c >= -128 && __c < 256 ? __ctype_tolower[__c] : __c; +} + +extern __inline int +toupper (int __c) __THROW +{ + return __c >= -128 && __c < 256 ? __ctype_toupper[__c] : __c; +} +# endif + +# if __GNUC__ >= 2 && defined __OPTIMIZE__ && !defined __cplusplus +# define tolower(c) __tobody (c, tolower, __ctype_tolower, (c)) +# define toupper(c) __tobody (c, toupper, __ctype_toupper, (c)) +# endif /* Optimizing gcc */ + # if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN # define isascii(c) __isascii (c) # define toascii(c) __toascii (c) + +# define _tolower(c) ((int) __ctype_tolower[(int) (c)]) +# define _toupper(c) ((int) __ctype_toupper[(int) (c)]) # endif + #endif /* Not __NO_CTYPE. */ |