Question

I’m using eclipse and I’m building a simple program, but I get an error saying function sleep could not be resolved

#include <time.h>
#include <stdio.h>
#include <conio.h>
#include <iostream>
using namespace std;

int main() {
    cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!
    printf("ciao");
    sleep(20);
    return 0;
}

I don’t know if I need other libraries or something else.
MinGW should be installed properly, so I have no idea

Answer 1

If you are using MinGW as stated, then you may need to include windows.h. The sleep implementation I think uses the Win API Sleep().

For example:

#include <windows.h>
#include <iostream>

int main() {
    std::cout << "!!!Hello World!!!" << std::endl;
    Sleep(20000);
    std::cout << "Text Will Appear After 2 Sec.." << std::endl;
    return 0;
}