зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
3.3 KiB
C++
113 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsCRT.h"
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#include "nsString.h"
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#include "plstr.h"
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#include <stdlib.h>
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// The return from strcmp etc is only defined to be postive, zero or
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// negative. The magnitude of a non-zero return is irrelevant.
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PRIntn sign(PRIntn val) {
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if (val == 0)
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return 0;
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else {
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if (val > 0)
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return 1;
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else
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return -1;
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}
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}
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// Verify that nsCRT versions of string comparison routines get the
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// same answers as the native non-unicode versions. We only pass in
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// iso-latin-1 strings, so the comparison must be valid.
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static void Check(const char* s1, const char* s2, PRIntn n)
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{
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PRIntn clib = PL_strcmp(s1, s2);
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PRIntn clib_n = PL_strncmp(s1, s2, n);
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PRIntn clib_case = PL_strcasecmp(s1, s2);
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PRIntn clib_case_n = PL_strncasecmp(s1, s2, n);
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nsAutoString t1,t2;
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t1.AssignWithConversion(s1);
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t2.AssignWithConversion(s2);
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const PRUnichar* us1 = t1.get();
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const PRUnichar* us2 = t2.get();
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PRIntn u2 = nsCRT::strcmp(us1, us2);
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PRIntn u2_n = nsCRT::strncmp(us1, us2, n);
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NS_ASSERTION(sign(clib) == sign(u2), "strcmp");
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NS_ASSERTION(sign(clib_n) == sign(u2_n), "strncmp");
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}
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struct Test {
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const char* s1;
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const char* s2;
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PRIntn n;
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};
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static Test tests[] = {
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{ "foo", "foo", 3 },
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{ "foo", "fo", 3 },
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{ "foo", "bar", 3 },
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{ "foo", "ba", 3 },
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{ "foo", "zap", 3 },
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{ "foo", "za", 3 },
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{ "bar", "foo", 3 },
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{ "bar", "fo", 3 },
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{ "bar", "foo", 3 },
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{ "bar", "fo", 3 },
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};
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#define NUM_TESTS int((sizeof(tests) / sizeof(tests[0])))
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int main()
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{
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Test* tp = tests;
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for (int i = 0; i < NUM_TESTS; i++, tp++) {
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Check(tp->s1, tp->s2, tp->n);
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}
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return 0;
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}
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