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97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
#include <vector>
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#include <algorithm>
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#include <functional>
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#include <numeric>
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#include "iota.h"
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#include "cppunit/cppunit_proxy.h"
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#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
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using namespace std;
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#endif
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//
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// TestCase class
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//
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class MergeTest : public CPPUNIT_NS::TestCase
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{
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CPPUNIT_TEST_SUITE(MergeTest);
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CPPUNIT_TEST(merge0);
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CPPUNIT_TEST(merge1);
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CPPUNIT_TEST(merge2);
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CPPUNIT_TEST_SUITE_END();
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protected:
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void merge0();
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void merge1();
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void merge2();
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};
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CPPUNIT_TEST_SUITE_REGISTRATION(MergeTest);
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//
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// tests implementation
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//
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void MergeTest::merge0()
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{
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int numbers1[5] = { 1, 6, 13, 25, 101 };
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int numbers2[5] = {-5, 26, 36, 46, 99 };
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int result[10];
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merge((int*)numbers1, (int*)numbers1 + 5, (int*)numbers2, (int*)numbers2 + 5, (int*)result);
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CPPUNIT_ASSERT(result[0]==-5);
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CPPUNIT_ASSERT(result[1]==1);
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CPPUNIT_ASSERT(result[2]==6);
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CPPUNIT_ASSERT(result[3]==13);
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CPPUNIT_ASSERT(result[4]==25);
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CPPUNIT_ASSERT(result[5]==26);
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CPPUNIT_ASSERT(result[6]==36);
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CPPUNIT_ASSERT(result[7]==46);
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CPPUNIT_ASSERT(result[8]==99);
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CPPUNIT_ASSERT(result[9]==101);
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}
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void MergeTest::merge1()
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{
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vector<int> v1(5);
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vector<int> v2(v1.size());
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__iota(v1.begin(), v1.end(), 0);
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__iota(v2.begin(), v2.end(), 3);
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vector <int> result(v1.size() + v2.size());
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merge(v1.begin(), v1.end(), v2.begin(), v2.end(), result.begin());
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CPPUNIT_ASSERT(result[0]==0);
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CPPUNIT_ASSERT(result[1]==1);
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CPPUNIT_ASSERT(result[2]==2);
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CPPUNIT_ASSERT(result[3]==3);
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CPPUNIT_ASSERT(result[4]==3);
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CPPUNIT_ASSERT(result[5]==4);
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CPPUNIT_ASSERT(result[6]==4);
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CPPUNIT_ASSERT(result[7]==5);
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CPPUNIT_ASSERT(result[8]==6);
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CPPUNIT_ASSERT(result[9]==7);
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}
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void MergeTest::merge2()
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{
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vector <int> v1(5);
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vector <int> v2(v1.size());
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for (int i = 0; (size_t)i < v1.size(); ++i) {
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v1[i] = 10 - i;
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v2[i] = 7 - i;
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}
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vector<int> result(v1.size() + v2.size());
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merge(v1.begin(), v1.end(), v2.begin(), v2.end(), result.begin(), greater<int>() );
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CPPUNIT_ASSERT(result[0]==10);
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CPPUNIT_ASSERT(result[1]==9);
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CPPUNIT_ASSERT(result[2]==8);
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CPPUNIT_ASSERT(result[3]==7);
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CPPUNIT_ASSERT(result[4]==7);
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CPPUNIT_ASSERT(result[5]==6);
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CPPUNIT_ASSERT(result[6]==6);
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CPPUNIT_ASSERT(result[7]==5);
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CPPUNIT_ASSERT(result[8]==4);
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CPPUNIT_ASSERT(result[9]==3);
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}
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