strcasecmp.c 2.0 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. libc_hidden_proto(wcscasecmp)
  14. # if defined(__USE_GNU) && defined(__UCLIBC_HAS_XLOCALE__)
  15. libc_hidden_proto(wcscasecmp_l)
  16. # endif
  17. # ifdef __UCLIBC_DO_XLOCALE
  18. libc_hidden_proto(towlower_l)
  19. # define TOLOWER(C) towlower_l((C), locale_arg)
  20. # else
  21. libc_hidden_proto(towlower)
  22. # define TOLOWER(C) towlower((C))
  23. # endif
  24. #else
  25. /* Experimentally off - libc_hidden_proto(strcasecmp) */
  26. /* Experimentally off - libc_hidden_proto(strcasecmp_l) */
  27. # ifdef __UCLIBC_DO_XLOCALE
  28. libc_hidden_proto(tolower_l)
  29. # define TOLOWER(C) tolower_l((C), locale_arg)
  30. # else
  31. #if !defined __UCLIBC_HAS_XLOCALE__ && defined __UCLIBC_HAS_CTYPE_TABLES__
  32. libc_hidden_proto(__ctype_tolower)
  33. #endif
  34. libc_hidden_proto(tolower)
  35. # define TOLOWER(C) tolower((C))
  36. # endif
  37. #endif
  38. #if defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE)
  39. int strcasecmp(register const Wchar *s1, register const Wchar *s2)
  40. {
  41. return strcasecmp_l(s1, s2, __UCLIBC_CURLOCALE);
  42. }
  43. libc_hidden_def(strcasecmp)
  44. #else /* defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE) */
  45. /* Experimentally off - libc_hidden_proto(__XL_NPP(strcasecmp)) */
  46. int __XL_NPP(strcasecmp)(register const Wchar *s1, register const Wchar *s2
  47. __LOCALE_PARAM )
  48. {
  49. #ifdef WANT_WIDE
  50. while ((*s1 == *s2) || (TOLOWER(*s1) == TOLOWER(*s2))) {
  51. if (!*s1++) {
  52. return 0;
  53. }
  54. ++s2;
  55. }
  56. return (((Wuchar)TOLOWER(*s1)) < ((Wuchar)TOLOWER(*s2))) ? -1 : 1;
  57. /* TODO -- should wide cmp funcs do wchar or Wuchar compares? */
  58. #else
  59. int r = 0;
  60. while ( ((s1 == s2) ||
  61. !(r = ((int)( TOLOWER(*((Wuchar *)s1))))
  62. - TOLOWER(*((Wuchar *)s2))))
  63. && (++s2, *s1++));
  64. return r;
  65. #endif
  66. }
  67. libc_hidden_def(__XL_NPP(strcasecmp))
  68. #endif /* defined(__UCLIBC_HAS_XLOCALE__) && !defined(__UCLIBC_DO_XLOCALE) */