strcasecmp.c 1.8 KB

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  1. /*
  2. * Copyright (C) 2002 Manuel Novoa III
  3. * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
  4. *
  5. * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  6. */
  7. #include "_string.h"
  8. #include <ctype.h>
  9. #include <locale.h>
  10. #ifdef WANT_WIDE
  11. # define strcasecmp wcscasecmp
  12. # define strcasecmp_l wcscasecmp_l
  13. # ifdef __UCLIBC_DO_XLOCALE
  14. libc_hidden_proto(towlower_l)
  15. # define TOLOWER(C) towlower_l((C), locale_arg)
  16. # else
  17. libc_hidden_proto(towlower)
  18. # define TOLOWER(C) towlower((C))
  19. # endif
  20. #else
  21. # ifdef __UCLIBC_DO_XLOCALE
  22. libc_hidden_proto(tolower_l)
  23. # define TOLOWER(C) tolower_l((C), locale_arg)
  24. # else
  25. #ifndef __UCLIBC_HAS_XLOCALE__
  26. libc_hidden_proto(__ctype_tolower)
  27. #endif
  28. libc_hidden_proto(tolower)
  29. # define TOLOWER(C) tolower((C))
  30. # endif
  31. #endif
  32. #if defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE)
  33. libc_hidden_proto(strcasecmp_l)
  34. libc_hidden_proto(strcasecmp)
  35. int strcasecmp(register const Wchar *s1, register const Wchar *s2)
  36. {
  37. return strcasecmp_l(s1, s2, __UCLIBC_CURLOCALE);
  38. }
  39. libc_hidden_def(strcasecmp)
  40. #else /* defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE) */
  41. libc_hidden_proto(__XL_NPP(strcasecmp))
  42. int __XL_NPP(strcasecmp)(register const Wchar *s1, register const Wchar *s2
  43. __LOCALE_PARAM )
  44. {
  45. #ifdef WANT_WIDE
  46. while ((*s1 == *s2) || (TOLOWER(*s1) == TOLOWER(*s2))) {
  47. if (!*s1++) {
  48. return 0;
  49. }
  50. ++s2;
  51. }
  52. return (((Wuchar)TOLOWER(*s1)) < ((Wuchar)TOLOWER(*s2))) ? -1 : 1;
  53. /* TODO -- should wide cmp funcs do wchar or Wuchar compares? */
  54. #else
  55. int r = 0;
  56. while ( ((s1 == s2) ||
  57. !(r = ((int)( TOLOWER(*((Wuchar *)s1))))
  58. - TOLOWER(*((Wuchar *)s2))))
  59. && (++s2, *s1++));
  60. return r;
  61. #endif
  62. }
  63. libc_hidden_def(__XL_NPP(strcasecmp))
  64. #endif /* defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE) */