[問題] std::list 陣列

看板C_and_CPP作者hardware (硬體)時間9年前 (2015/06/03 15:56)推噓0(0推 0噓 21→)

留言21則, 3人參與討論串1/1

開發平台(Platform): (Ex: VC++, GCC, Linux, ...) g++ Linux 程式碼(Code)：(請善用置底文網頁, 記得排版) #include <iostream> #include <cstring> #include <list> using namespace std; #define BUFFERSIZE 1024 class receivebuffer_0{ public: unsigned char *payload; int NALU; receivebuffer_0() // Constructor { payload = new unsigned char[BUFFERSIZE]; NALU = 0; } }; int main() { list<receivebuffer_0> WiFi; receivebuffer_0 data; size_t payloadLength = 100; unsigned char payloadIndex[payloadLength]; payloadIndex[0] = 254; payloadIndex[1] = 30; data.NALU = 1; cout<< (int)payloadIndex[0]<<endl; // output 254 OK memcpy(data.payload , payloadIndex, 2); WiFi.push_back(data); payloadIndex[0] = 40; payloadIndex[1] = 45; data.NALU = 12333; memcpy(data.payload , payloadIndex, 2); WiFi.push_back(data); cout<<(int)WiFi.front().payload[0]<<endl; //output 40 .... should output 254 cout<<WiFi.front().NALU<<endl; // output 1 WiFi.pop_front(); cout<<(int)WiFi.front().payload[0]<<endl; // output 40 cout<<WiFi.front().NALU<<endl; // output 12333 return 0; } 補充說明(Supplement)：我應該要如何修正呢? 另外為什麼不能 cout<<(int)WiFi.front().payload; 這樣不是可以印出 payload這陣列所有元素的值嗎? 謝謝 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.117.164.19 ※ 文章網址: https://www.ptt.cc/bbs/C_and_CPP/M.1433318216.A.A8B.html

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