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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [string/] [wcsncasecmp.c] - Rev 214
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/* FUNCTION <<wcsncasecmp>>---case-insensitive wide character string compare INDEX wcsncasecmp ANSI_SYNOPSIS #include <wchar.h> int wcsncasecmp(const wchar_t *<[a]>, const wchar_t * <[b]>, size_t <[length]>); TRAD_SYNOPSIS #include <wchar.h> int wcsncasecmp(<[a]>, <[b]>, <[length]>) wchar_t *<[a]>; wchar_t *<[b]>; size_t <[length]> DESCRIPTION <<wcsncasecmp>> compares up to <[length]> wide characters from the string at <[a]> to the string at <[b]> in a case-insensitive manner. RETURNS If <<*<[a]>>> sorts lexicographically after <<*<[b]>>> (after both are converted to uppercase), <<wcsncasecmp>> returns a number greater than zero. If the two strings are equivalent, <<wcsncasecmp>> returns zero. If <<*<[a]>>> sorts lexicographically before <<*<[b]>>>, <<wcsncasecmp>> returns a number less than zero. PORTABILITY POSIX-1.2008 <<wcsncasecmp>> requires no supporting OS subroutines. It uses tolower() from elsewhere in this library. QUICKREF wcsncasecmp */ #include <wchar.h> #include <wctype.h> int _DEFUN (wcsncasecmp, (s1, s2, n), _CONST wchar_t *s1 _AND _CONST wchar_t *s2 _AND size_t n) { if (n == 0) return 0; while (n-- != 0 && towlower(*s1) == towlower(*s2)) { if (n == 0 || *s1 == '\0' || *s2 == '\0') break; s1++; s2++; } return towlower(*s1) - towlower(*s2); }
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