using namespace std let u access to standard library in cpp such string or vector , if u dont , for example to use tge cout , u have to access to it using :: , std::cout , so to make it simple , u use std namespace and just call cout 24th Nov 2017, 8:16 AM Maher Zaido...
what is the output the following code?#include using namespace std;class A1 { public: int a; static int b;A1(); ~A1();}; 4class A2 { public: int a; char c; A2(); ~A2();}; 8class A3 { public: float a; char c; A3(); ~A3();}; 8class A4 { public: float a; int...
* //HalSetSystemInformation#include <iostream>#include <string.h>#include <Windows.h>using namespace std;#define IOCTL(Function) CTL_CODE(FILE_DEVICE_UNKNOWN, Function, METHOD_NEITHER, FILE_ANY_ACCESS)#define HEVD_IOCTL_ARBITRARY_WRITE IOCTL(0x802)typedef struct SYSTEM_MODULE { ULONG Reserved1...
The above code defines a functionprintIntthat takes a void pointer num as a parameter and casts it to an integer pointer using thestatic_cast operator. The function then prints the value of the integer pointed to by the casted pointer. In the main function, an integer variable x is defined...
To get direct access to variables and methods defined in the standard libraries that come in C++... cout and cin are a good example of this...if you don't declare "using namespace std" at the begining of your code then you will have to use std::cout and std::cin each time you ...
1: #include <iostream> 2: 3: int main() 4: { 5: using namespace std; 6: 7: const double pi = 22.0 / 7; 8: cout << "The value of constant pi is: " << pi << endl; 9: 10: // Uncomment next line to view compile failure 11: // pi = 345; 12: 13: return 0; 14...
Here's a fun project attempting to explain what exactly is happening under the hood for some counter-intuitive snippets and lesser-known features in Python.While some of the examples you see below may not be WTFs in the truest sense, but they'll reveal some of the interesting parts of ...
Exception handling in C++ is a mechanism that allows a program to handle errors or exceptional situations during runtime by using try, catch, and throw statements.
using namespace std; int main(){ vector<int>v ={1,2,3,4,5}; sort(v.begin(), v.end()); for(int i : v){ cout<<i<<" "; } cout<<endl; return0; } In the above code, the <bits/stdc++.h> header file is used. A vector of integers is created, initialized with certain...
1#include"Box.h"23#include <iostream>4#include <stdexcept>56usingnamespacestd;78classBox::What {9public:10What() { cout <<"What created"<<endl; }11~What() { cout <<"What destroyed"<<endl; }12};1314classBox::Why {15public:16Why() { cout <<"Why created"<<endl; }17~Why() ...