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author | Richard Maw <richard.maw@codethink.co.uk> | 2012-01-17 14:43:55 +0000 |
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committer | Richard Maw <richard.maw@codethink.co.uk> | 2012-01-17 14:43:55 +0000 |
commit | 2de9abc5c9d40b3c716307d67d16146f823fd554 (patch) | |
tree | 6979db67934ddc8b564150b465846a383b428ff8 /gnulib/lib/mbmemcasecmp.c | |
parent | 33cc1c6fda6e72a7bae1401e9b2cec495a4d3ff1 (diff) | |
download | patch-baserock/bootstrap.tar.gz |
add the output of bootstrapbaserock/bootstrap-pass2baserock/bootstrap
Diffstat (limited to 'gnulib/lib/mbmemcasecmp.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/lib/mbmemcasecmp.c | 96 |
2 files changed, 96 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/lib/mbmemcasecmp.c b/gnulib/lib/mbmemcasecmp.c new file mode 100644 index 0000000..9f5d083 --- /dev/null +++ b/gnulib/lib/mbmemcasecmp.c @@ -0,0 +1,96 @@ +/* Compare two memory areas with possibly different lengths, case-insensitive. + Copyright (C) 1998-1999, 2005-2011 Free Software Foundation, Inc. + Written by Bruno Haible <bruno@clisp.org>, 2009, + based on earlier glibc code. + + 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 3 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, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include "mbmemcasecmp.h" + +#include <ctype.h> +#include <limits.h> +#include <stdlib.h> + +#include "mbiter.h" + +#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch)) + +int +mbmemcasecmp (const char *s1, size_t n1, const char *s2, size_t n2) +{ + if (s1 == s2) + return (n1 < n2 ? -1 : n1 > n2 ? 1 : 0); + + if (MB_CUR_MAX > 1) + { + mbi_iterator_t iter1; + mbi_iterator_t iter2; + + mbi_init (iter1, s1, n1); + mbi_init (iter2, s2, n2); + + while (mbi_avail (iter1) && mbi_avail (iter2)) + { + int cmp = mb_casecmp (mbi_cur (iter1), mbi_cur (iter2)); + + if (cmp != 0) + return cmp; + + mbi_advance (iter1); + mbi_advance (iter2); + } + if (mbi_avail (iter1)) + /* s2 terminated before s1. */ + return 1; + if (mbi_avail (iter2)) + /* s1 terminated before s2. */ + return -1; + return 0; + } + else + { + const unsigned char *s1_end = (const unsigned char *) (s1 + n1); + const unsigned char *s2_end = (const unsigned char *) (s2 + n2); + const unsigned char *p1 = (const unsigned char *) s1; + const unsigned char *p2 = (const unsigned char *) s2; + + while (p1 < s1_end && p2 < s2_end) + { + unsigned char c1 = TOLOWER (*p1); + unsigned char c2 = TOLOWER (*p2); + if (c1 != c2) + { + if (UCHAR_MAX <= INT_MAX) + return c1 - c2; + else + /* On machines where 'char' and 'int' are types of the same + size, the difference of two 'unsigned char' values + - including the sign bit - doesn't fit in an 'int'. */ + return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0); + } + ++p1; + ++p2; + } + if (p1 < s1_end) + /* s2 terminated before s1. */ + return 1; + if (p2 < s2_end) + /* s1 terminated before s2. */ + return -1; + return 0; + } +} |