1 /* Compare two memory areas with possibly different lengths, case-insensitive. 2 Copyright (C) 2009-2021 Free Software Foundation, Inc. 3 4 This program is free software: you can redistribute it and/or modify it 5 under the terms of the GNU Lesser General Public License as published 6 by the Free Software Foundation; either version 3 of the License, or 7 (at your option) any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public License 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 16 17 #ifndef MBMEMCASECMP_H 18 #define MBMEMCASECMP_H 19 20 #include <stddef.h> 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 27 /* Compare the memory regions S1 = [s1..s1+N1-1], S2 = [s2..s2+n2-1], that 28 contain character sequences, lexicographically, ignoring case. 29 This function's result is locale dependent. Unlike memcasecmp(), it works 30 correctly in multibyte locales and also handles Turkish i / dotless i. 31 Unlike ulc_casecmp(), it does not handle the German sharp s and the Greek 32 final sigma. Unlike memcoll() and ulc_casecoll(), it ignores collation 33 order. 34 Return a negative number if S1 < S2, a positive number if S1 > S2, or 35 0 if S1 and S2 have the same contents. 36 Note: This function may, in multibyte locales, return 0 for strings of 37 different lengths! */ 38 extern int mbmemcasecmp (const char *s1, size_t n1, const char *s2, size_t n2); 39 40 41 #ifdef __cplusplus 42 } 43 #endif 44 45 #endif /* MBMEMCASECMP_H */