Alternative function in iostream.h for getch() of conio.h?

user_159475 0
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I'm trying to hold the screen on my output using the header file <iostream.h>, but I don't know any equivalent function to the getch() & clrscr() functions of <conio.h> in <iostream.h> or any other C++ library. Are there any such functions?

iostream c++
11 Answers

just use cin.get();

user_5441800

The platform-specific function getch() from conio.h has two special features:

  • No echoing of characters.
  • Unbuffered reading of characters.

The echoing is done by the terminal outside of the C/C++ environment. It can only be controlled by manipulating the terminal. Also, it is nearly impossible to get unbuffered I/O with the iostream.h header.

Therefore it is not possible to get anywhere near getch() using iostream.h alone.

(There are plenty of getch()implementations around, e.g. using termios.h to disable echoing.)

user_47920580

For clrscr() I generally use

system("cls");       //Windows
system("clear");     // Linux

And for the getch() function I agree with @iKlsR , just use cin.get() 2 times.

{   ...
    std::cin.get();
    std::cin.get();
}

and if you are looking to pause the system for a moment or specific time interval use:

system("sleep 5s"); //for linux

basically the function system("x") runs the command x in terminal. So you can just exploit it by using the different function in place of x. (be specific to use the commands which are related to your distro or OS)

user_113555240
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