delete vector
To delete a single element, you could do: std::vector<int> vec; vec.push_back(6); vec.push_back(-17); vec.push_back(12); // Deletes the second element (vec[1]) vec.erase(vec.begin() + 1);. Or, to delete more than one element at once: // Deletes the ,I think you should use std::vector::clear : vec.clear();. EDIT: Doesn't clear destruct the elements held by the vector? Yes it does. It calls the destructor of every element in the vector before returning the memory. That depends on what "element
| 相關軟體 Vectr 資訊 | |
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 delete vector 相關參考資料
C++ delete vector, objects, free memory - Stack Overflow
You can call clear, and that will destroy all the objects, but that will not free the memory. Looping through the individual elements will not help either (what action would you even propose to take ... https://stackoverflow.com c++ - How do I erase an element from std::vector<> by index ...
To delete a single element, you could do: std::vector<int> vec; vec.push_back(6); vec.push_back(-17); vec.push_back(12); // Deletes the second element (vec[1]) vec.erase(vec.begin() + 1);. Or, t... https://stackoverflow.com stl - Delete all items from a c++ std::vector - Stack Overflow
I think you should use std::vector::clear : vec.clear();. EDIT: Doesn't clear destruct the elements held by the vector? Yes it does. It calls the destructor of every element in the vector before r... https://stackoverflow.com c++ - How to really delete vectors - Stack Overflow
For starters, I don't believe there is a leak. Did you properly read the Leak Summary you posted for the program?: ==2301== LEAK SUMMARY: ==2301== definitely lost: 0 bytes in 0 blocks ==2301== in... https://stackoverflow.com c++ - Should I delete vector<string>? - Stack Overflow
The rule is that when you clear a vector of objects, the destructor of each element will be called. On the other hand, if you have a vector of pointers, vector::clear() will not call delete on them, ... https://stackoverflow.com vector::erase - C++ Reference - Cplusplus.com
erasing from vector #include <iostream> #include <vector> int main () std::vector< int > myvector; // set some values (from 1 to 10) for ( int i=1; i<=10; i++) myvector.push_back... http://www.cplusplus.com How to delete vector class objects.. - C++ Forum - Cplusplus.com
Hi! First of all I want to wish you a Happy new year! :) First of all you need to know that i am new to C++, and i apologize for the things you are going to see... :P I am working on a project and i h... http://www.cplusplus.com deleting a vector of points - C++ Forum - cplusplus.com
Hi all, following is the code I think will delete all the objects that the elements(pointers) in my vector point to and also the elements(pointers) in my vector. In short deleting a vector of pointers... http://www.cplusplus.com [STL Note] vector 注意事項& FAQ - 痞客邦PIXNET
不只erase 有這問題，只要是和「刪除」、「插入」、「變大小」有關的都有這問題，如clear、pop_back、push_back、insert、resize、reserve 等都會產生，另外在做pop_back(vector, list, deque) / pop_front(list, deque) 時，若container empty 成立，結果將不明確，故需做額外判斷。然而在關連式容器... http://edisonx.pixnet.net [SOLVED] C++ how to correctly delete a vector? - Ubuntu Forums
Is it correct that it?: 1) Calls vector's clear() method to delete the objects, and since there are only pointers to objects it only deletes the pointers but the objects themselves stay in memory... https://ubuntuforums.org |