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C ++ function works fine on Windows, but not Linux?

I am trying to write a simple C ++ function sleep(int millisecond)that will sleep with a program for a custom millisecond.

Here is my code:

#include <iostream>
#include <time.h>

using namespace std;

void sleep(unsigned int mseconds) {
    clock_t goal = mseconds + clock();
    while (goal > clock());
}

int main() {
    cout << "Hello World !" << endl;
    sleep(3000);
    cout << "Hello World 2" << endl;
}

The function sleep()works fine when I run this code on Windows, but it does not work on Linux. Can anyone understand what happened to my code?

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4 answers

You can use the built-in function sleep(), which takes response time as seconds, not in milliseconds, and should include a standard library unistd.h, since the build-in function is sleep()defined in this library.

Try:

#include <iostream>
#include <unistd.h>

using namespace std;

int main() {
    cout << "Hello World !" << endl;
    sleep(3);   //wait for 3 seconds
    cout << "Hello World 2" << endl;
}

: R

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+9

++ 11 sleep_for.

#include <chrono>
#include <thread>

void sleep(unsigned int mseconds) {
    std::chrono::milliseconds dura( mseconds);
    std::this_thread::sleep_for( dura );
}
+2

There is no standard C API for milliseconds on Linux, so you will need to use usleep. POSIX sleeptakes seconds.

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