| /* |
| * R : A Computer Language for Statistical Data Analysis |
| * Copyright (C) 2002 The R Core Team. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, a copy is available at |
| * https://www.R-project.org/Licenses/ |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <ctype.h> |
| #include <sys/types.h> |
| |
| /* This version uses locale-specific case folding */ |
| |
| int strncasecmp(const char *s1, const char *s2, size_t n) |
| { |
| char c1, c2; |
| int i; |
| |
| for (i = 0; i < n; i++) { |
| c1 = s1[i]; c2 = s2[i]; |
| c1 = isupper(c1) ? tolower(c1) : c1; |
| c2 = isupper(c2) ? tolower(c2) : c2; |
| if (c1 == '\0') return ((c2 == '\0') ? 0 : -1); |
| if (c2 == '\0') return 1; |
| if (c1 < c2) return -1; |
| if (c1 > c2) return 1; |
| } |
| return 0; |
| } |