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- /***
- *strnicmp.c - compare n chars of strings, ignoring case
- *
- * Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
- *
- *Purpose:
- * defines _strnicmp() - Compares at most n characters of two strings,
- * without regard to case.
- *
- *******************************************************************************/
-
- #include <cruntime.h>
- #include <string.h>
-
- #ifdef _WIN32
- #include <mtdll.h>
- #include <ctype.h>
- #include <setlocal.h>
- #include <locale.h>
- #endif /* _WIN32 */
-
- /***
- *int _strnicmp(first, last, count) - compares count char of strings, ignore case
- *
- *Purpose:
- * Compare the two strings for lexical order. Stops the comparison
- * when the following occurs: (1) strings differ, (2) the end of the
- * strings is reached, or (3) count characters have been compared.
- * For the purposes of the comparison, upper case characters are
- * converted to lower case.
- *
- *Entry:
- * char *first, *last - strings to compare
- * size_t count - maximum number of characters to compare
- *
- *Exit:
- * returns <0 if first < last
- * returns 0 if first == last
- * returns >0 if first > last
- *
- *Exceptions:
- *
- *******************************************************************************/
-
- int __cdecl _strnicmp (
- const char * first,
- const char * last,
- size_t count
- )
- {
- int f,l;
- #ifdef _MT
- int local_lock_flag;
- #endif /* _MT */
-
- if ( count )
- {
- #if defined (_WIN32)
- if ( __lc_handle[LC_CTYPE] == _CLOCALEHANDLE ) {
- #endif /* defined (_WIN32) */
-
- do {
- if ( ((f = (unsigned char)(*(first++))) >= 'A') &&
- (f <= 'Z') )
- f -= 'A' - 'a';
-
- if ( ((l = (unsigned char)(*(last++))) >= 'A') &&
- (l <= 'Z') )
- l -= 'A' - 'a';
-
- } while ( --count && f && (f == l) );
- #if defined (_WIN32)
- }
- else {
- _lock_locale( local_lock_flag )
-
- do {
- f = _tolower_lk( (unsigned char)(*(first++)) );
- l = _tolower_lk( (unsigned char)(*(last++)) );
- } while (--count && f && (f == l) );
-
- _unlock_locale( local_lock_flag )
- }
- #endif /* defined (_WIN32) */
-
- return( f - l );
- }
-
- return( 0 );
- }
-