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Commit 2cae756

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Exercise 24.1; Exercise 24.2
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6 files changed

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‎CMakeLists.txt

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@@ -29,3 +29,4 @@ add_subdirectory ("Chapter_19")
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add_subdirectory ("Chapter_20")
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add_subdirectory ("Chapter_21")
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add_subdirectory ("Chapter_23")
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add_subdirectory ("Chapter_24")

‎Chapter_24/C24_Exercise_24.1.cpp

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/* Exercise 24.1 */
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#include<iostream>
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#include<sstream>
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#include<iomanip>
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#include"../Matrix/Matrix11.h"
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#include"../Matrix/MatrixIO11.h"
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#include"C24_Exercise_24.1.h"
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using namespace std;
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inline void error(string s) { throw runtime_error(s); }
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inline void error(const string& s, const string& s2) { error(s + s2); }
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inline void error(const string& s, int i) { ostringstream os; os << s << ": " << i; error(os.str()); }
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inline void keep_window_open() { char ch; cin >> ch; }
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int main()
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{
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enum Action {
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EXIT = -1, PRINTACTIONLIST,
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CASE1, CASE2, CASE3, CASE4, CASE5
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};
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const string actionList = "\tList of actions:\n"
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" (1) triple()\n"
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" (-1) Exit, (0) Print the list of actions\n";
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cout << actionList;
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int action;
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bool cond{ true };
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while (cond) try {
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cout << "\nPlease enter the action: ";
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if (!(cin >> action)) { ClearInput(cin); error("Error. Incorrect input"); }
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char ch;
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cin.get(ch);
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switch (action) {
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case CASE1: {
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cout << endl;
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Numeric_lib::Matrix<int> mat(5);
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for (int i = 0; i < 5; ++i) mat[i] = i + 1;
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Numeric_lib::Matrix<int> mat1(5);
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for (int i = 0; i < 5; ++i) mat1[i] = i + 1;
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Numeric_lib::Matrix<int> mat2(5);
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mat1.apply(triple1);
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mat2 = Numeric_lib::apply(triple2, mat);
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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cout << sp_2 << "Matrix<int> mat1.apply(triple1): " << mat1 << endl;
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cout << sp_2 << "Matrix<int> mat2 = Numeric_lib::apply(triple2, mat): " << mat2 << endl;
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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Numeric_lib::Matrix<int> mat3(5);
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for (int i = 0; i < 5; ++i) mat3[i] = i + 1;
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Numeric_lib::Matrix<int> mat4(5);
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mat3.apply(triple);
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mat4 = Numeric_lib::apply(triple, mat);
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cout << endl;
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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cout << sp_2 << "Matrix<int> mat3.apply(triple): " << mat3 << endl;
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cout << sp_2 << "Matrix<int> mat4 = Numeric_lib::apply(triple, mat): " << mat4 << endl;
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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cout << vsp_2;
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break;
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}
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case PRINTACTIONLIST:
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cout << actionList;
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break;
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case EXIT:
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cond = false;
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break;
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default:
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error("Error. Incorrect action number");
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break;
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}
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}
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catch (runtime_error& e) {
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cerr << e.what() << endl;
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}
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catch (...) {
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cerr << "Error. Exception\n";
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return 1;
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}
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return 0;
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}
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void ClearInput(istream& is)
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{
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is.clear();
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is.ignore(numeric_limits<streamsize>::max(), '\n');
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}

‎Chapter_24/C24_Exercise_24.1.h

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/* Exercise 24.1 */
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using namespace std;
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const char* sp_2 = " ";
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const char* sp_4 = " ";
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const char* sp_6 = " ";
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const char* sp_8 = " ";
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const char* vsp_2 = "\n\n";
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const char* vsp_3 = "\n\n\n";
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const char* vsp_4 = "\n\n\n\n";
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void ClearInput(istream& is);
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void triple1(int& elem) { elem *= 3; }
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int triple2(const int& elem) { return elem * 3; }
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int triple(int& elem) { return elem *= 3; }

‎Chapter_24/C24_Exercise_24.2.cpp

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/* Exercise 24.2 */
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#include<iostream>
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#include<sstream>
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#include<iomanip>
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#include"../Matrix/Matrix11.h"
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#include"../Matrix/MatrixIO11.h"
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#include"C24_Exercise_24.2.h"
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using namespace std;
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inline void error(string s) { throw runtime_error(s); }
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inline void error(const string& s, const string& s2) { error(s + s2); }
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inline void error(const string& s, int i) { ostringstream os; os << s << ": " << i; error(os.str()); }
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inline void keep_window_open() { char ch; cin >> ch; }
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int main()
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{
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enum Action {
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EXIT = -1, PRINTACTIONLIST,
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CASE1, CASE2, CASE3, CASE4, CASE5
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};
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const string actionList = "\tList of actions:\n"
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" (1) triple{}\n"
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" (-1) Exit, (0) Print the list of actions\n";
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cout << actionList;
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int action;
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bool cond{ true };
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while (cond) try {
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cout << "\nPlease enter the action: ";
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if (!(cin >> action)) { ClearInput(cin); error("Error. Incorrect input"); }
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char ch;
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cin.get(ch);
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switch (action) {
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case CASE1: {
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cout << endl;
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Numeric_lib::Matrix<int> mat(5);
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for (int i = 0; i < 5; ++i) mat[i] = i + 1;
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Numeric_lib::Matrix<int> mat1(5);
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for (int i = 0; i < 5; ++i) mat1[i] = i + 1;
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Numeric_lib::Matrix<int> mat2(5);
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mat1.apply(triple1{});
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mat2 = Numeric_lib::apply(triple2{}, mat);
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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cout << sp_2 << "Matrix<int> mat1.apply(triple1{}): " << mat1 << endl;
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cout << sp_2 << "Matrix<int> mat2 = Numeric_lib::apply(triple2{}, mat): " << mat2 << endl;
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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Numeric_lib::Matrix<int> mat3(5);
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for (int i = 0; i < 5; ++i) mat3[i] = i + 1;
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Numeric_lib::Matrix<int> mat4(5);
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mat3.apply(triple{});
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mat4 = Numeric_lib::apply(triple{}, mat);
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cout << endl;
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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cout << sp_2 << "Matrix<int> mat3.apply(triple{}): " << mat3 << endl;
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cout << sp_2 << "Matrix<int> mat4 = Numeric_lib::apply(triple{}, mat): " << mat4 << endl;
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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Numeric_lib::Matrix<int> mat5(5);
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for (int i = 0; i < 5; ++i) mat5[i] = i + 1;
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Numeric_lib::Matrix<int> mat6(5);
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mat5.apply(multiply{ 5 });
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mat6 = Numeric_lib::apply(multiply{ 10 }, mat);
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cout << endl;
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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cout << sp_2 << "Matrix<int> mat5.apply(multiply{ 5 }): " << mat5 << endl;
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cout << sp_2 << "Matrix<int> mat6 = Numeric_lib::apply(multiply{ 10 }, mat): " << mat6 << endl;
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cout << sp_2 << "Source Matrix<int> mat: " << mat << endl;
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cout << vsp_2;
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break;
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}
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case PRINTACTIONLIST:
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cout << actionList;
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break;
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case EXIT:
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cond = false;
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break;
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default:
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error("Error. Incorrect action number");
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break;
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}
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}
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catch (runtime_error& e) {
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cerr << e.what() << endl;
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}
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catch (...) {
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cerr << "Error. Exception\n";
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return 1;
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}
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return 0;
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}
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void ClearInput(istream& is)
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{
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is.clear();
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is.ignore(numeric_limits<streamsize>::max(), '\n');
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}

‎Chapter_24/C24_Exercise_24.2.h

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/* Exercise 24.2 */
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using namespace std;
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const char* sp_2 = " ";
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const char* sp_4 = " ";
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const char* sp_6 = " ";
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const char* sp_8 = " ";
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const char* vsp_2 = "\n\n";
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const char* vsp_3 = "\n\n\n";
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const char* vsp_4 = "\n\n\n\n";
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void ClearInput(istream& is);
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struct triple1 {
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void operator()(int& elem) { elem *= 3; }
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};
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struct triple2 {
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int operator()(const int& elem) { return elem * 3; }
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};
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struct triple {
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int operator()(int& elem) { return elem *= 3; }
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};
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class multiply {
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int mul;
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public:
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multiply(int multiplier) : mul{ multiplier } {}
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int operator()(int& elem) { return elem *= mul; }
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};

‎Chapter_24/CMakeLists.txt

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# CMakeList.txt : CMake project for Template, include source and define
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# project specific logic here.
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#
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cmake_minimum_required (VERSION 3.8)
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project ("Chapter_24")
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set (CMAKE_CXX_STANDARD 14)
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set (CMAKE_INSTALL_PREFIX ${PROJECT_SOURCE_DIR}/..)
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set (FILE_NAME C24_Exercise_24.1)
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set (SOURCE_CXX_LIST ${FILE_NAME}.cpp)
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set (FILE_NAME2 C24_Exercise_24.2)
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set (SOURCE_CXX_LIST2 ${FILE_NAME2}.cpp)
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# Add source to this project's executable.
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add_executable (${FILE_NAME} ${SOURCE_CXX_LIST})
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add_executable (${FILE_NAME2} ${SOURCE_CXX_LIST2})
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# TODO: Add tests and install targets if needed.
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install (TARGETS ${FILE_NAME} CONFIGURATIONS Debug DESTINATION Build/Debug)
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install (TARGETS ${FILE_NAME} CONFIGURATIONS Release DESTINATION Build)
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install (TARGETS ${FILE_NAME2} CONFIGURATIONS Debug DESTINATION Build/Debug)
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install (TARGETS ${FILE_NAME2} CONFIGURATIONS Release DESTINATION Build)

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