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author | Bruno Haible <bruno@clisp.org> | 2007-08-18 17:09:47 +0000 |
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committer | Bruno Haible <bruno@clisp.org> | 2007-08-18 17:09:47 +0000 |
commit | a669764b7e8277a9877b9a22024bf800540321a3 (patch) | |
tree | 741b98ff7149e4ac8f4459af73509534ddec6bc6 /tests | |
parent | 76eb5db6bb71874428b959b90f167040d4b54200 (diff) | |
download | gnulib-a669764b7e8277a9877b9a22024bf800540321a3.tar.gz |
Test of fuzzy string matching.
Diffstat (limited to 'tests')
-rw-r--r-- | tests/test-fstrcmp.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tests/test-fstrcmp.c b/tests/test-fstrcmp.c new file mode 100644 index 0000000000..5aa36ff8b4 --- /dev/null +++ b/tests/test-fstrcmp.c @@ -0,0 +1,63 @@ +/* Test of fuzzy string comparison. + Copyright (C) 2007 Free Software Foundation, Inc. + + 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, 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, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Bruno Haible <bruno@clisp.org>, 2007. */ + +#include <config.h> + +#include "fstrcmp.h" + +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> + +#define ASSERT(expr) \ + do \ + { \ + if (!(expr)) \ + { \ + fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \ + abort (); \ + } \ + } \ + while (0) + +static bool +check_fstrcmp (const char *string1, const char *string2, double expected) +{ + /* The use of 'volatile' guarantees that excess precision bits are dropped + before the addition and before the following comparison at the caller's + site. It is necessary on x86 systems where double-floats are not IEEE + compliant by default, to avoid that msgmerge results become platform and + compiler option dependent. 'volatile' is a portable alternative to gcc's + -ffloat-store option. */ + volatile double result = fstrcmp (string1, string2); + return (result == expected); +} + +int +main () +{ + ASSERT (check_fstrcmp ("Langstrumpf", "Langstrumpf", 1.0)); + ASSERT (check_fstrcmp ("Levenshtein", "Levenstein", 20./21.)); + ASSERT (check_fstrcmp ("Levenstein", "Levenshtein", 20./21.)); + ASSERT (check_fstrcmp ("xy", "yx", 1./2.)); + ASSERT (check_fstrcmp ("George Bush", "Abraham Lincoln", 2./13.)); + ASSERT (check_fstrcmp ("George Bush", "George \"Bugs\" Moran", 2./3.)); + + return 0; +} |