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LibC: Primitively implement wcscoll
At the moment, sorting like LC_COLLATE=C would do is better than nothing.
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3 changed files with 50 additions and 3 deletions
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Tests/LibC/TestWchar.cpp
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45
Tests/LibC/TestWchar.cpp
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/*
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* Copyright (c) 2021, the SerenityOS developers
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <wchar.h>
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TEST_CASE(wcscoll)
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{
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// Check if wcscoll is sorting correctly. At the moment we are doing raw char comparisons,
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// so it's digits, then uppercase letters, then lowercase letters.
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// Equalness between equal strings.
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EXPECT(wcscoll(L"", L"") == 0);
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EXPECT(wcscoll(L"0", L"0") == 0);
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// Shorter strings before longer strings.
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EXPECT(wcscoll(L"", L"0") < 0);
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EXPECT(wcscoll(L"0", L"") > 0);
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EXPECT(wcscoll(L"123", L"1234") < 0);
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EXPECT(wcscoll(L"1234", L"123") > 0);
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// Order within digits.
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EXPECT(wcscoll(L"0", L"9") < 0);
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EXPECT(wcscoll(L"9", L"0") > 0);
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// Digits before uppercase letters.
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EXPECT(wcscoll(L"9", L"A") < 0);
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EXPECT(wcscoll(L"A", L"9") > 0);
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// Order within uppercase letters.
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EXPECT(wcscoll(L"A", L"Z") < 0);
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EXPECT(wcscoll(L"Z", L"A") > 0);
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// Uppercase letters before lowercase letters.
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EXPECT(wcscoll(L"Z", L"a") < 0);
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EXPECT(wcscoll(L"a", L"Z") > 0);
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// Uppercase letters before lowercase letters.
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EXPECT(wcscoll(L"a", L"z") < 0);
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EXPECT(wcscoll(L"z", L"a") > 0);
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}
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