#include <stdio.h> #include <stdlib.h> char * favorite_fruit1(void); char * favorite_fruit2(void); void favorite_fruit3(char **); int main(void) { char * fruit1 = favorite_fruit1(); printf("%s\n", fruit1); char * fruit2 = favorite_fruit2(); printf("%s\n", fruit2); char * fruit3 = NULL; favorite_fruit3(&fruit3); printf("%s\n", fruit3); printf("------END of CODE------"); return EXIT_SUCCESS; } char * favorite_fruit1(void){ char deciduous[] = "apple"; return deciduous; } char * favorite_fruit2(void){ static char deciduous[] = "apple"; return deciduous; } void favorite_fruit3(char ** fruit){ static char deciduous[] = "apple"; *fruit = deciduous; }
favorite_fruit1寰堟槑鏄句細(xì)鍑虹幇闂錛屽師鍥犳槸鍥犱負(fù)char deciduous[]鏄眬閮ㄥ彉閲忥紝鍦ㄥ嚱鏁拌皟鐢ㄨ繑鍥炲悗錛屽氨閲婃斁浜嗐?/p>
favorite_fruit2鍥犱負(fù)浣跨敤浜唖tatic錛岃宻tatic闄愬畾浜嗗彉閲忚淇濆瓨鍦ㄦ暟鎹錛坉ata segment錛変腑錛屽畠鐨勫０鏄庡懆鏈熷悓紼嬪簭涓鏍烽暱銆傛墍浠ヤ笉浼?xì)鍑洪敊銆?/p>
favorite_fruit3鏄彟涓縐嶆湁鏁堢殑鍐欐硶錛屽叾鍘熺悊鍚?銆?/p>
Algorithms.h
#pragma once #include <iostream> class Algorithms { public: Algorithms(void); ~Algorithms(void); public: template <typename T> static void QuickSort(T* arr, size_t min, size_t max); private: template <typename T> static size_t qsort_helper_partition(T* arr, size_t min, size_t max); template <typename T> static inline void swap(T* arr, size_t x, size_t y); }; template <typename T> void Algorithms::QuickSort(T* arr, size_t min, size_t max) { if(min >= max || max == 0 - 1) return; size_t p = qsort_helper_partition(arr, min, max); QuickSort(arr, min, p - 1); QuickSort(arr, p + 1, max); } template <typename T> size_t Algorithms::qsort_helper_partition(T* arr, size_t min, size_t max) { T cmp = arr[min]; int i = min + 1, j = max; while(true) { while(cmp < arr[i]) ++i; while(arr[j] < cmp) --j; if(i >= j) break; swap(arr, i, j); } swap(arr, min, j); return j; } template <typename T> void Algorithms::swap(T* arr, size_t x, size_t y) { T tmp = arr[x]; arr[x] = arr[y]; arr[y] = tmp; }
鐢ㄦ硶錛氾紙欏轟究鏈夋爣鍑嗗簱鐨勬帓搴忔硶錛屽綋鐒跺彧鏄皟涓涓嬶紝娌℃湁浠涔堝彲璇寸殑浜嗭級(jí)
#include "Algorithms.h" #include <iostream> #include <vector> #include <algorithm> int _tmain(int argc, _TCHAR* argv[]) { int arr[] = {4, 8, 3, 7, 1, 5, 6, 2}; for(size_t i = 0; i != 8; ++i) { std::cout<<arr[i]<<" "; } std::cout<<std::endl; Algorithms::QuickSort(arr,0, 7); for(size_t i = 0; i != 8; ++i) { std::cout<<arr[i]<<" "; } std::cout<<std::endl; std::vector<int> vec; vec.push_back(3); vec.push_back(1); vec.push_back(4); vec.push_back(1); vec.push_back(7); vec.push_back(6); for(std::vector<int>::iterator iter = vec.begin(); iter != vec.end(); ++ iter) { std::cout<<*iter<<" "; } std::cout<<std::endl; std::sort(vec.begin(), vec.end()); for(std::vector<int>::iterator iter = vec.begin(); iter != vec.end(); ++ iter) { std::cout<<*iter<<" "; } std::cout<<std::endl; return 0; }
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