vector pop_front
I would expect: template<typename T> void pop_front(std::vector<T>& vec) assert(!vec.empty()); vec.front() = std::move(vec.back()); vec.pop_back(); }. to be the most efficient way of doing this, but it does not maintain the order of the , I would expect: template<typename T> void pop_front(std::vector<T>& vec) assert(!vec.empty()); vec.front() = std::move(vec.back()); vec.pop_back(); }. to be the most efficient way of doing this, but it does not maintain the order of the , Vector 是C++ 中一個非常好用的「容器」，是加強版的陣列，對自己的一些基本資訊提供成員函式來直接存取。 記得小時候考程式檢定的時候，初學vector，考試時就用vector 開心解完閃人，而隔壁桌的還在用C 慢慢刻，才初次見識到這個東西的強大，基本上寫c++ 很建議使用vector 取代低階的array 和pointer，比較易 ...,deque::pop_front #include <iostream> #include <deque> int main () std::deque< int > mydeque; mydeque.push_back (100); mydeque.push_back (200); mydeque.push_back (300); std::cout << "Popping out the elements in mydeque:" ,list::pop_front #include <iostream> #include <list> int main () std::list< int > mylist; mylist.push_back (100); mylist.push_back (200); mylist.push_back (300); std::cout << "Popping out the elements in mylist:" ; while ,vector::pop_back #include <iostream> #include <vector> int main () std::vector< int > myvector; int sum (0); myvector.push_back (100); myvector.push_back (200); myvector.push_back (300); while (!myvector.empty()) sum+=myvector.back(); , "begin" serves double-duty as "pointer to the first T in the vector" and "pointer to all the memory we allocated." therefore it's impossible to "pop" elements off the front of the vector by simply incrementing
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 vector pop_front 相關參考資料
c++ - fast way to implement pop_front to a std::vector - Stack ...
I would expect: template<typename T> void pop_front(std::vector<T>& vec) assert(!vec.empty()); vec.front() = std::move(vec.back()); vec.pop_back(); }. to be the most efficient way of... https://stackoverflow.com c++ - fast way to implement pop_front to a std::vector - Stack Overflow
I would expect: template<typename T> void pop_front(std::vector<T>& vec) assert(!vec.empty()); vec.front() = std::move(vec.back()); vec.pop_back(); }. to be the most efficient way of... https://stackoverflow.com CC++ - Vector (STL) 用法與心得完全攻略| Mr. Opengate
Vector 是C++ 中一個非常好用的「容器」，是加強版的陣列，對自己的一些基本資訊提供成員函式來直接存取。 記得小時候考程式檢定的時候，初學vector，考試時就用vector 開心解完閃人，而隔壁桌的還在用C 慢慢刻，才初次見識到這個東西的強大，基本上寫c++ 很建議使用vector 取代低階的array 和pointer，比較易 ... http://mropengate.blogspot.com deque::pop_front - C++ Reference - Cplusplus.com
deque::pop_front #include <iostream> #include <deque> int main () std::deque< int > mydeque; mydeque.push_back (100); mydeque.push_back (200); mydeque.push_back (300); std::cout <... http://www.cplusplus.com list::pop_front - C++ Reference - Cplusplus.com
list::pop_front #include <iostream> #include <list> int main () std::list< int > mylist; mylist.push_back (100); mylist.push_back (200); mylist.push_back (300); std::cout << &... http://www.cplusplus.com vector::pop_back - C++ Reference - Cplusplus.com
vector::pop_back #include <iostream> #include <vector> int main () std::vector< int > myvector; int sum (0); myvector.push_back (100); myvector.push_back (200); myvector.push_back (... http://www.cplusplus.com Why there is no pop_front method in C++ std::vector? - Stack Overflow
"begin" serves double-duty as "pointer to the first T in the vector" and "pointer to all the memory we allocated." therefore it's impossible to "pop" eleme... https://stackoverflow.com |