vasilito
facf0c92e0
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76 lines
2.4 KiB
C
76 lines
2.4 KiB
C
/* Test of fuzzy string comparison.
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Copyright (C) 2007-2024 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
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#include <config.h>
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#include "fstrcmp.h"
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#include "macros.h"
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static bool
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check_fstrcmp (const char *string1, const char *string2, double expected)
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{
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/* The use of 'volatile' guarantees that excess precision bits are dropped
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before the addition and before the following comparison at the caller's
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site. It is necessary on x86 systems where double-floats are not IEEE
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compliant by default, to avoid that msgmerge results become platform and
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compiler option dependent. 'volatile' is a portable alternative to gcc's
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-ffloat-store option. */
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{
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volatile double result = fstrcmp (string1, string2);
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if (!(result == expected))
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return false;
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}
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{
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volatile double result = fstrcmp_bounded (string1, string2, expected);
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if (!(result == expected))
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return false;
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}
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{
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double bound = expected * 0.5; /* implies bound <= expected */
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volatile double result = fstrcmp_bounded (string1, string2, bound);
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if (!(result == expected))
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return false;
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}
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{
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double bound = (1 + expected) * 0.5;
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if (expected < bound)
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{
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volatile double result = fstrcmp_bounded (string1, string2, bound);
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if (!(result < bound))
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return false;
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}
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}
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return true;
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}
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int
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main (int argc, char *argv[])
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{
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ASSERT (check_fstrcmp ("Langstrumpf", "Langstrumpf", 1.0));
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ASSERT (check_fstrcmp ("Levenshtein", "Levenstein", 20./21.));
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ASSERT (check_fstrcmp ("Levenstein", "Levenshtein", 20./21.));
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ASSERT (check_fstrcmp ("xy", "yx", 1./2.));
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ASSERT (check_fstrcmp ("George Bush", "Abraham Lincoln", 2./13.));
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ASSERT (check_fstrcmp ("George Bush", "George \"Bugs\" Moran", 2./3.));
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return 0;
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}
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