~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/linux/ctype.h

Version: ~ [ linux-5.9 ] ~ [ linux-5.8.14 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.70 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.150 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.200 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.238 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.238 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 #ifndef _LINUX_CTYPE_H
  2 #define _LINUX_CTYPE_H
  3 
  4 /*
  5  * NOTE! This ctype does not handle EOF like the standard C
  6  * library is required to.
  7  */
  8 
  9 #define _U      0x01    /* upper */
 10 #define _L      0x02    /* lower */
 11 #define _D      0x04    /* digit */
 12 #define _C      0x08    /* cntrl */
 13 #define _P      0x10    /* punct */
 14 #define _S      0x20    /* white space (space/lf/tab) */
 15 #define _X      0x40    /* hex digit */
 16 #define _SP     0x80    /* hard space (0x20) */
 17 
 18 extern const unsigned char _ctype[];
 19 
 20 #define __ismask(x) (_ctype[(int)(unsigned char)(x)])
 21 
 22 #define isalnum(c)      ((__ismask(c)&(_U|_L|_D)) != 0)
 23 #define isalpha(c)      ((__ismask(c)&(_U|_L)) != 0)
 24 #define iscntrl(c)      ((__ismask(c)&(_C)) != 0)
 25 #define isdigit(c)      ((__ismask(c)&(_D)) != 0)
 26 #define isgraph(c)      ((__ismask(c)&(_P|_U|_L|_D)) != 0)
 27 #define islower(c)      ((__ismask(c)&(_L)) != 0)
 28 #define isprint(c)      ((__ismask(c)&(_P|_U|_L|_D|_SP)) != 0)
 29 #define ispunct(c)      ((__ismask(c)&(_P)) != 0)
 30 /* Note: isspace() must return false for %NUL-terminator */
 31 #define isspace(c)      ((__ismask(c)&(_S)) != 0)
 32 #define isupper(c)      ((__ismask(c)&(_U)) != 0)
 33 #define isxdigit(c)     ((__ismask(c)&(_D|_X)) != 0)
 34 
 35 #define isascii(c) (((unsigned char)(c))<=0x7f)
 36 #define toascii(c) (((unsigned char)(c))&0x7f)
 37 
 38 static inline unsigned char __tolower(unsigned char c)
 39 {
 40         if (isupper(c))
 41                 c -= 'A'-'a';
 42         return c;
 43 }
 44 
 45 static inline unsigned char __toupper(unsigned char c)
 46 {
 47         if (islower(c))
 48                 c -= 'a'-'A';
 49         return c;
 50 }
 51 
 52 #define tolower(c) __tolower(c)
 53 #define toupper(c) __toupper(c)
 54 
 55 /*
 56  * Fast implementation of tolower() for internal usage. Do not use in your
 57  * code.
 58  */
 59 static inline char _tolower(const char c)
 60 {
 61         return c | 0x20;
 62 }
 63 
 64 /* Fast check for octal digit */
 65 static inline int isodigit(const char c)
 66 {
 67         return c >= '' && c <= '7';
 68 }
 69 
 70 #endif
 71 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp