fork download
copy 
  1. #include <iostream>
  2. #include <algorithm>
  3. #include <vector>
  4.  
  5. struct Entity { bool alive = true; bool GetAlive() { return alive; } };
  6.  
  7. int main()
  8. {
  9. 	std::vector<Entity *> bulletEnemyObjects = {
  10. 		new Entity, new Entity, new Entity, new Entity, new Entity, new Entity
  11. 	};
  12. 	bulletEnemyObjects[3]->alive = false;
  13. 	bulletEnemyObjects[4]->alive = false;
  14. 	std::cout << "before count: " << bulletEnemyObjects.size() << "\n";
  15.  
  16.     bulletEnemyObjects.erase(
  17.         std::remove_if(bulletEnemyObjects.begin(), bulletEnemyObjects.end(),
  18.             [](Entity *p) { return !p->GetAlive(); }
  19.             ),
  20.         bulletEnemyObjects.end()
  21.         );
  22.  
  23. 	std::cout << "after count: " << bulletEnemyObjects.size() << "\n";
  24.  
  25. 	for (Entity *p : bulletEnemyObjects)
  26. 		delete p;
  27. }
  28.  
Success #stdin #stdout 0s 3428KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
before count: 6
after count: 4
https://ideone.com/Q4XcNm
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!