include/string.h

   1 /*
   2  * (C) Copyright 2007-2010  Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
   3  *
   4  * This file is released under the GPLv2.  See the COPYING file for more
   5  * details.
   6  */
   7
   8 #ifndef __STRING_H
   9 #define __STRING_H
  10
  11 #include <vsprintf.h>
  12
  13 #define memset(d,s,l)   __builtin_memset((d),(s),(l))
  14 #define memcpy(d,s,l)   __builtin_memcpy((d),(s),(l))
  15 extern void *memmove(void *dest, const void *src, size_t count);
  16 #define memcmp(d,s,l)   __builtin_memcmp((d),(s),(l))
  17 extern size_t strnlen(const char *s, size_t count);
  18 extern int strcmp(const char *cs, const char *ct);
  19 extern int strncmp(const char *cs, const char *ct, int len);
  20 extern int strcasecmp(const char *s1, const char *s2);
  21 extern char *strncpy(char *dest, const char *src, size_t count);
  22 extern char *strpbrk(const char *cs, const char *ct);
  23 extern size_t strspn(const char *s, const char *accept);
  24 extern char *strsep(char **s, const char *ct);
  25 extern char *strmsep(char **s, const char *ct);
  26
  27 static inline int toupper(int c)
  28 {
  29        /*
  30         * TODO: This would break if we ever tried to compile within an EBCDIC
  31         * environment
  32         */
  33        if ((c >= 'a') && (c <= 'z'))
  34                c += 'A'-'a';
  35        return c;
  36 }
  37
  38 static inline int tolower(int c)
  39 {
  40        /*
  41         * TODO: This would break if we ever tried to compile within an EBCDIC
  42         * environment
  43         */
  44        if ((c >= 'A') && (c <= 'Z'))
  45                c -= 'A'-'a';
  46        return c;
  47 }
  48
  49 /*
  50  * NOTE! This ctype does not handle EOF like the standard C
  51  * library is required to. (Taken from include/linux/ctype.h)
  52  */
  53
  54 #define _U      0x01    /* upper */
  55 #define _L      0x02    /* lower */
  56 #define _D      0x04    /* digit */
  57 #define _C      0x08    /* cntrl */
  58 #define _P      0x10    /* punct */
  59 #define _S      0x20    /* white space (space/lf/tab) */
  60 #define _X      0x40    /* hex digit */
  61 #define _SP     0x80    /* hard space (0x20) */
  62
  63 extern unsigned char _ascii_ctype[];
  64
  65 #define __ismask(x) (_ascii_ctype[(int)(unsigned char)(x)])
  66
  67 #define isalnum(c)      ((__ismask(c)&(_U|_L|_D)) != 0)
  68 #define isalpha(c)      ((__ismask(c)&(_U|_L)) != 0)
  69 #define iscntrl(c)      ((__ismask(c)&(_C)) != 0)
  70 #define isdigit(c)      ((__ismask(c)&(_D)) != 0)
  71 #define isgraph(c)      ((__ismask(c)&(_P|_U|_L|_D)) != 0)
  72 #define islower(c)      ((__ismask(c)&(_L)) != 0)
  73 #define isprint(c)      ((__ismask(c)&(_P|_U|_L|_D|_SP)) != 0)
  74 #define ispunct(c)      ((__ismask(c)&(_P)) != 0)
  75 #define isspace(c)      ((__ismask(c)&(_S)) != 0)
  76 #define isupper(c)      ((__ismask(c)&(_U)) != 0)
  77 #define isxdigit(c)     ((__ismask(c)&(_D|_X)) != 0)
  78
  79 #endif