зеркало из https://github.com/mozilla/gecko-dev.git
110 строки
3.0 KiB
C++
110 строки
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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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 comparision 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(s1), t2(s2);
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const PRUnichar* us1 = t1.GetUnicode();
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const PRUnichar* us2 = t2.GetUnicode();
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PRIntn u = nsCRT::strcmp(us1, s2);
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PRIntn u_n = nsCRT::strncmp(us1, s2, n);
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PRIntn u_case = nsCRT::strcasecmp(us1, s2);
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PRIntn u_case_n = nsCRT::strncasecmp(us1, s2, n);
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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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PRIntn u2_case = nsCRT::strcasecmp(us1, us2);
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PRIntn u2_case_n = nsCRT::strncasecmp(us1, us2, n);
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NS_ASSERTION(sign(clib) == sign(u), "strcmp");
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NS_ASSERTION(sign(clib_n) == sign(u_n), "strncmp");
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NS_ASSERTION(sign(clib_case) == sign(u_case), "strcasecmp");
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NS_ASSERTION(sign(clib_case_n) == sign(u_case_n), "strncasecmp");
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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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NS_ASSERTION(sign(clib_case) == sign(u2_case), "strcasecmp");
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NS_ASSERTION(sign(clib_case_n) == sign(u2_case_n), "strncasecmp");
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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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