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practical_exercises/key_exercises/array_template.cpp
80 строк
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zhangxing
support bazel complie this project and format code.
30 мар 2024, 17:00
30 мар 2024, 17:00
3c8a3f2
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/* 类模板特化之数组.cpp */ #include <cstring> #include <iostream> using namespace std; #define MAXSIZE 5 template <class T> class Array { public: Array() { for (int i = 0; i < MAXSIZE; i++) { array[i] = 0; } } T &operator[](int i); void Sort(); private: T array[MAXSIZE]; }; template <class T> T &Array<T>::operator[](int i) { if (i < 0 || i > MAXSIZE - 1) { cout << "数组下标越界！" << endl; exit(0); } return array[i]; } template <class T> void Array<T>::Sort() { int p, j; for (int i = 0; i < MAXSIZE - 1; i++) { p = i; for (j = i + 1; j < MAXSIZE; j++) { if (array[p] < array[j]) p = j; } T t; t = array[i]; array[i] = array[p]; array[p] = t; } } template <> void Array<char *>::Sort() { int p, j; for (int i = 0; i < MAXSIZE - 1; i++) { p = i; for (j = i + 1; j < MAXSIZE; j++) { if (strcmp(array[p], array[j]) < 0) p = j; } char *t = array[i]; array[i] = array[p]; array[p] = t; } } int main(int argc, char const *argv[]) { Array<int> a1; Array<char *> b1; a1[0] = 1; a1[1] = 23; a1[2] = 6; a1[3] = 3; a1[4] = 9; a1.Sort(); for (int i = 0; i < 5; i++) cout << a1[i] << "\t"; cout << endl; b1[0] = "x1"; b1[1] = "ya"; b1[2] = "ad"; b1[3] = "be"; b1[4] = "bc"; b1.Sort(); for (int i = 0; i < 5; i++) cout << b1[i] << "\t"; cout << endl; return 0; }