What could we use in place of getch() in the following code

Question

char a;
a=getch();

Answer 1

Abhishek Yes, and there are very many things you can't do in standard C/C++ using only the standard library: GUIs, graphics, network ports, calling other programs, getting keyboard/mouse/other peripheral input, navigating a file system (in C and in C++ before C++17), multi-threading (in C before C11 and in C++ before C++11).
It doesn't mean that you shouldn't.

It's also worth noting that C was built with Unix in mind, where you don't end your programs waiting for input because the output stays on the screen.

Answer 2

In C++ use cin to accept input and cout to write output.
#include <iostream>

int main()
{
char a;

std::cin >> a; // read one character
std::cout << a // output the character

return 0;
}

In C use scanf() to accept input, printf() to write output.

#include <stdio.h>

int main()
{
char a;

scanf("%c", &a); // read one character
printf("%c", a); // output the character

return 0;
}

Hth, cmiiw

Answer 3

char a will save keyboard button you pressed, it will save a character.
We often told that getch will hold program execution, however this is not the main purpose of this function.
It's just side effects of input a char to the console.

Answer 4

a = getchar(); in C or std::cin >> a; in C++

Note that there is no way of doing unbuffered input in standard C/C++

Answer 5

Owenizedd but what if I want to perform that function as in every platform it won't work

Answer 6

Vlad Serbu so we can't create any password type program in standard c/c++??

Answer 7

Abhishek Yes you can, because it's the only function that's available in C/C++.
By the way conio.n is not standard, but you can still create the program
If you want to do that(holding screen) in c++ way
then you can just cin >> a; but we have to input something. So use cin.ignore() once, if doesn't work use twice and it'll work just fine.
if you wanna use getch for Password typing in c++
add
#include <conio.h>