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133 lines
3.1 KiB
C++
133 lines
3.1 KiB
C++
#include <numeric>
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#include <vector>
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#include <algorithm>
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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 RotateTest : public CPPUNIT_NS::TestCase
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{
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CPPUNIT_TEST_SUITE(RotateTest);
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CPPUNIT_TEST(rotate0);
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CPPUNIT_TEST(rotate1);
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CPPUNIT_TEST(rotcopy0);
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CPPUNIT_TEST(rotcopy1);
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CPPUNIT_TEST_SUITE_END();
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protected:
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void rotate0();
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void rotate1();
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void rotcopy0();
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void rotcopy1();
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};
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CPPUNIT_TEST_SUITE_REGISTRATION(RotateTest);
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//
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// tests implementation
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//
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void RotateTest::rotate0()
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{
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int numbers[6] = { 0, 1, 2, 3, 4, 5 };
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// 3 4 5 0 1 2
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rotate((int*)numbers, numbers + 3, numbers + 6);
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CPPUNIT_ASSERT(numbers[0]==3);
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CPPUNIT_ASSERT(numbers[1]==4);
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CPPUNIT_ASSERT(numbers[2]==5);
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CPPUNIT_ASSERT(numbers[3]==0);
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CPPUNIT_ASSERT(numbers[4]==1);
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CPPUNIT_ASSERT(numbers[5]==2);
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}
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void RotateTest::rotate1()
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{
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vector <int> v1(10);
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__iota(v1.begin(), v1.end(), 0);
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rotate(v1.begin(), v1.begin()+1, v1.end());
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CPPUNIT_ASSERT(v1[0]==1);
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CPPUNIT_ASSERT(v1[1]==2);
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CPPUNIT_ASSERT(v1[2]==3);
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CPPUNIT_ASSERT(v1[3]==4);
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CPPUNIT_ASSERT(v1[4]==5);
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CPPUNIT_ASSERT(v1[5]==6);
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CPPUNIT_ASSERT(v1[6]==7);
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CPPUNIT_ASSERT(v1[7]==8);
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CPPUNIT_ASSERT(v1[8]==9);
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CPPUNIT_ASSERT(v1[9]==0);
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rotate(v1.begin(), v1.begin()+2, v1.end());
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CPPUNIT_ASSERT(v1[0]==3);
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CPPUNIT_ASSERT(v1[1]==4);
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CPPUNIT_ASSERT(v1[2]==5);
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CPPUNIT_ASSERT(v1[3]==6);
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CPPUNIT_ASSERT(v1[4]==7);
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CPPUNIT_ASSERT(v1[5]==8);
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CPPUNIT_ASSERT(v1[6]==9);
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CPPUNIT_ASSERT(v1[7]==0);
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CPPUNIT_ASSERT(v1[8]==1);
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CPPUNIT_ASSERT(v1[9]==2);
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rotate(v1.begin(), v1.begin()+7, v1.end());
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CPPUNIT_ASSERT(v1[0]==0);
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CPPUNIT_ASSERT(v1[1]==1);
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CPPUNIT_ASSERT(v1[2]==2);
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CPPUNIT_ASSERT(v1[3]==3);
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CPPUNIT_ASSERT(v1[4]==4);
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CPPUNIT_ASSERT(v1[5]==5);
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CPPUNIT_ASSERT(v1[6]==6);
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CPPUNIT_ASSERT(v1[7]==7);
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CPPUNIT_ASSERT(v1[8]==8);
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CPPUNIT_ASSERT(v1[9]==9);
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}
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void RotateTest::rotcopy0()
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{
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int numbers[6] = { 0, 1, 2, 3, 4, 5 };
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int result[6];
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rotate_copy((int*)numbers, (int*)numbers + 3, (int*)numbers + 6, (int*)result);
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// 3 4 5 0 1 2
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CPPUNIT_ASSERT(result[0]==3);
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CPPUNIT_ASSERT(result[1]==4);
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CPPUNIT_ASSERT(result[2]==5);
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CPPUNIT_ASSERT(result[3]==0);
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CPPUNIT_ASSERT(result[4]==1);
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CPPUNIT_ASSERT(result[5]==2);
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}
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void RotateTest::rotcopy1()
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{
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vector <int> v1(10);
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__iota(v1.begin(), v1.end(), 0);
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vector <int> v2(v1.size());
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rotate_copy(v1.begin(), v1.begin()+1, v1.end(), v2.begin());
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CPPUNIT_ASSERT(v2[0]==1);
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CPPUNIT_ASSERT(v2[1]==2);
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CPPUNIT_ASSERT(v2[2]==3);
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CPPUNIT_ASSERT(v2[3]==4);
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CPPUNIT_ASSERT(v2[4]==5);
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CPPUNIT_ASSERT(v2[5]==6);
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CPPUNIT_ASSERT(v2[6]==7);
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CPPUNIT_ASSERT(v2[7]==8);
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CPPUNIT_ASSERT(v2[8]==9);
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CPPUNIT_ASSERT(v2[9]==0);
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rotate_copy(v1.begin(), v1.begin()+3, v1.end(), v2.begin());
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CPPUNIT_ASSERT(v2[0]==3);
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CPPUNIT_ASSERT(v2[1]==4);
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CPPUNIT_ASSERT(v2[2]==5);
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CPPUNIT_ASSERT(v2[3]==6);
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CPPUNIT_ASSERT(v2[4]==7);
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CPPUNIT_ASSERT(v2[5]==8);
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CPPUNIT_ASSERT(v2[6]==9);
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CPPUNIT_ASSERT(v2[7]==0);
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CPPUNIT_ASSERT(v2[8]==1);
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CPPUNIT_ASSERT(v2[9]==2);
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}
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