输出结果为: Elements in the vector: 3 7 11 5 First element: 3 Second element: 7 Size of the vector: 4 Elements in the vector after erasing: 3 7 5 Size of the vector after clearing: 0
#include<algorithm>// Including the Algorithm Library for sorting#include<iostream>// Including the Input/Output Stream Library#include<vector>// Including the Vector Library for using vectorsusing namespace std;// Using the Standard Namespace// Function to test if the elements in the vector are...
此外由于_Container_base基类(也是_contoiner_base_aux_alloc_empty,用了typedef)没有数据成员,就直接构造函数体,_Alloc是类型参数 接下来构造_Alval(_Al)对象成员,将内存分配子_Al对象初始化给_Alval(调用拷贝构造函数),但是担心_Alval和_Al类型不一样,所以使用了成员模板(在_Al中定义,在_Alval中使用),eg:...
在上面的例子当中，我们定义了一个 add 函数，那么在用 gdb 调试这个程序的过程中，我们随时可以使用 call add(num1, num2) 来调用这个函数。[root@localhost ~]# gdb a.out -qReading symbols from /root/a.out...done.(gdb) startTemporary breakpoint 1 at 0x4010a3: file main.cpp, line 13.Star...
http://www.cppblog.com/vontroy/archive/2010/05/16/115501.html map映照容器的元素数据是一个键值和一个映照数据组成的,键值与映照数据之间具有一一映照的关系。 map映照容器的数据结构是采用红黑树来实现的,插入键值的元素不允许重复,比较函数只对元素的键值进行比较,元素的各项数据可通过键值检索出来。
std::inplace_vector Defined in header<inplace_vector> template< classT, std::size_tN >structinplace_vector; (since C++26) inplace_vectoris a dynamically-resizable array with contiguous inplace storage. The elements of typeTare stored and properly aligned within the object itself. The capacity...
代码语言:cpp 复制 #include<vector> #include <mutex> #include<thread> std::vector<int> vec; std::mutex mtx; void push_back(int value) { std::lock_guard<std::mutex> lock(mtx); vec.push_back(value); } void print_vector() { std::lock_guard<std::mutex> lock(mtx); for (auto& ...
在GDB中,可以使用pretty打印机来显示特定的std::vector元素。pretty打印机是GDB的一个功能,它可以将复杂的数据结构以更易读的方式显示出来。 要在GDB中显示特定的std::vector元素,可以按照以下步骤操作: 首先,确保你已经在GDB中加载了你的程序,并且程序已经停在你希望检查的位置。
// CPP program to illustrate// Application ofempty() function#include<iostream>#include<vector>usingnamespacestd;intmain(){intsum =0;vector<int> myvector{1,5,6,3,9,2};while(!myvector.empty()) { sum = sum + myvector.back(); ...
__cpp_lib_incomplete_container_elements201505L(C++17)Minimal incomplete type support (since C++17) Allocator-An allocator that is used to acquire/release memory and to construct/destroy the elements in that memory. The type must meet the requirements ofAllocator.The behavior is undefined(until C++...