mirror of
https://github.com/mozilla/gecko-dev.git
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76 lines
2.7 KiB
C++
76 lines
2.7 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Assertions.h"
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#include "mozilla/BinarySearch.h"
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#include "mozilla/Vector.h"
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using mozilla::Vector;
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using mozilla::BinarySearch;
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struct Person
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{
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int age;
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int id;
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Person(int age, int id) : age(age), id(id) {}
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};
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struct GetAge
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{
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Vector<Person> &v;
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GetAge(Vector<Person> &v) : v(v) {}
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int operator[](size_t index) const { return v[index].age; }
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};
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int main()
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{
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size_t m;
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Vector<int> v1;
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v1.append(2);
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v1.append(4);
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v1.append(6);
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v1.append(8);
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MOZ_ASSERT(!BinarySearch(v1, 0, v1.length(), 1, &m) && m == 0);
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MOZ_ASSERT( BinarySearch(v1, 0, v1.length(), 2, &m) && m == 0);
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MOZ_ASSERT(!BinarySearch(v1, 0, v1.length(), 3, &m) && m == 1);
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MOZ_ASSERT( BinarySearch(v1, 0, v1.length(), 4, &m) && m == 1);
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MOZ_ASSERT(!BinarySearch(v1, 0, v1.length(), 5, &m) && m == 2);
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MOZ_ASSERT( BinarySearch(v1, 0, v1.length(), 6, &m) && m == 2);
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MOZ_ASSERT(!BinarySearch(v1, 0, v1.length(), 7, &m) && m == 3);
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MOZ_ASSERT( BinarySearch(v1, 0, v1.length(), 8, &m) && m == 3);
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MOZ_ASSERT(!BinarySearch(v1, 0, v1.length(), 9, &m) && m == 4);
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MOZ_ASSERT(!BinarySearch(v1, 1, 3, 1, &m) && m == 1);
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MOZ_ASSERT(!BinarySearch(v1, 1, 3, 2, &m) && m == 1);
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MOZ_ASSERT(!BinarySearch(v1, 1, 3, 3, &m) && m == 1);
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MOZ_ASSERT( BinarySearch(v1, 1, 3, 4, &m) && m == 1);
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MOZ_ASSERT(!BinarySearch(v1, 1, 3, 5, &m) && m == 2);
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MOZ_ASSERT( BinarySearch(v1, 1, 3, 6, &m) && m == 2);
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MOZ_ASSERT(!BinarySearch(v1, 1, 3, 7, &m) && m == 3);
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MOZ_ASSERT(!BinarySearch(v1, 1, 3, 8, &m) && m == 3);
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MOZ_ASSERT(!BinarySearch(v1, 1, 3, 9, &m) && m == 3);
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MOZ_ASSERT(!BinarySearch(v1, 0, 0, 0, &m) && m == 0);
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MOZ_ASSERT(!BinarySearch(v1, 0, 0, 9, &m) && m == 0);
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Vector<int> v2;
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MOZ_ASSERT(!BinarySearch(v2, 0, 0, 0, &m) && m == 0);
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MOZ_ASSERT(!BinarySearch(v2, 0, 0, 9, &m) && m == 0);
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Vector<Person> v3;
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v3.append(Person(2, 42));
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v3.append(Person(4, 13));
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v3.append(Person(6, 360));
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MOZ_ASSERT(!BinarySearch(GetAge(v3), 0, v3.length(), 1, &m) && m == 0);
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MOZ_ASSERT( BinarySearch(GetAge(v3), 0, v3.length(), 2, &m) && m == 0);
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MOZ_ASSERT(!BinarySearch(GetAge(v3), 0, v3.length(), 3, &m) && m == 1);
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MOZ_ASSERT( BinarySearch(GetAge(v3), 0, v3.length(), 4, &m) && m == 1);
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MOZ_ASSERT(!BinarySearch(GetAge(v3), 0, v3.length(), 5, &m) && m == 2);
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MOZ_ASSERT( BinarySearch(GetAge(v3), 0, v3.length(), 6, &m) && m == 2);
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MOZ_ASSERT(!BinarySearch(GetAge(v3), 0, v3.length(), 7, &m) && m == 3);
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}
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