// 添加元素到向量中 myVector.push_back(3); myVector.push_back(7); myVector.push_back(11); myVector.push_back(5); // 访问向量中的元素并输出 std::cout<<"Elements in the vector: "; for(intelement:myVector){ std::cout<<element<<"
std::cout<< president.name <<"was re-elected president of"<< president.country <<"in"<< president.year <<".\n"; }return0; }///reference:https://stackoverflow.com/questions/4303513/push-back-vs-emplace-backinttest_emplace_3() {/*template <class... Args> pair<iterator,bool> emplace...
#include<iostream>#include<vector>using namespace std;void pv(vector<int>& nums);void pv(vector<int>& nums, size_t index);int main(){ vector<int> nums(1,3); for (size_t i = 0; i < 20; i++) { nums.push_back(i); } return 0;}void pv(vector<int>& nums)...
// CPP program to illustrate// Application ofpush_backand pop_back function#include<iostream>#include<vector>usingnamespacestd;intmain(){intcount =0;vector<int> myvector; myvector.push_back(1); myvector.push_back(2); myvector.push_back(3); myvector.push_back(4); myvector.push_back(5...
// C++ program to illustrate the // capacity function in vector #include <iostream> #include <vector> using namespace std; int main() { vector<int> g1; for (int i = 1; i <= 5; i++) g1.push_back(i); cout << "Size : " << g1.size(); cout << "\nCapacity : " <<...
back里必须是vectorvector<int> B;B.push_back(0);B.push_back(1);B.push_back(2);A.push_...
而且是在push_back的时候将栈上对象通过拷贝复制到堆上去的。...这个很明显std::vector中的对象都是在堆上。使用完以后,我们必须手动释放该对象所占内存。...所以,我个人觉得两者的主要区别在于:std::vector和std::vector中元素T都是存储在栈上,而且std::vector不用手动管理内存空间,而std::vector的时候std::...
// Pushpop.cpp // compile with: /EHsc // Illustrates how to use the push and pop member // functions of the vector container. // // Functions: // // vector::push_back - Appends (inserts) an element to the end of a // vector, allocating memory for it if necessary. // // ve...
push_back adds an element to the end (public member function) emplace_back (C++11) constructs an element in-place at the end (public member function) append_range (C++23) adds a range of elements to the end (public member function) ...
#1 0x08049846 in std::vector<int, std::allocator<int> >::push_back (this=0x804a200, __x=@0xb7ce2464) at /usr/include/c++/4.1.2/bits/stl_vector.h:606 #2 0x08048bde in fun (p=0x0) at test.cpp:16 #3 0xb7f471eb in start_thread () from /lib/libpthread.so.0 ...