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99 lines
1.9 KiB
C++
99 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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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namespace TestCRT {
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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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int sign(int 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, int n)
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{
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#ifdef DEBUG
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int clib =
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#endif
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PL_strcmp(s1, s2);
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#ifdef DEBUG
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int clib_n =
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#endif
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PL_strncmp(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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#ifdef DEBUG
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int u2 =
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#endif
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nsCRT::strcmp(us1, us2);
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#ifdef DEBUG
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int u2_n =
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#endif
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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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int 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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}
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using namespace TestCRT;
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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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