std :: cout输出直到程序结束才打印

Question

I have a few std::cout statements and few of them do not print output to console till program ends. But it i put getchar() , it starts printing output. Why does it happen, can someone please explain?

Answer 1

The issue may be because you are not trying to flush your output. You can try like this:

std::cout << "some text" << std::flush;

or like

std::cout << "some text" << std::endl;

The standard output is buffered and on newline the buffer is flushed.