Issue
I want to get date of birth in one line:
#include <stdio.h>
int main()
{
int BirthYear,BirthMonth,BirthDay;
printf("Please enter your birth date: ");
scanf("%d",&BirthYear);
printf("/");
scanf("%d",&BirthMonth);
printf("/");
scanf("%d",&BirthDay);
return 0;
}
This is my output:
Please enter your birth date: YYYY
/MM
/DD
But I want to get something like this:
Please enter your birth date: YYYY/MM/DD
In output, it goes to next line after each scanf() without using \n. I use VS Code for IDM.
Solution
Here is a workaround using ansi control characters. I would not do like this, but just to show that it is possible:
#define PREVLINE "\033[F"
#define MSG "Please enter your birth date: "
int main(void) {
int BirthYear,BirthMonth,BirthDay;
printf(MSG);
scanf("%d",&BirthYear);
printf(PREVLINE MSG "%d/", BirthYear);
scanf("%d",&BirthMonth);
printf(PREVLINE MSG "%d/%d/", BirthYear, BirthMonth);
scanf("%d",&BirthDay);
printf("You entered: %d/%d/%d\n", BirthYear, BirthMonth, BirthDay);
}
Please note that this is not portable. The terminal needs to support this in order to work. AFAIK there's no 100% portable way to achieve this.
If you want to do this stuff for real, then I recommend taking a look at the ncurses library
Note:
Always check the return value for scanf
to detect errors.
Note2:
It may be a good idea to add fflush(stdout);
after each printf
statement.
I actually wrote another answer today about ascii control characters. It might be interesting: https://stackoverflow.com/a/64549313/6699433
Answered By - klutt Answer Checked By - Robin (PHPFixing Admin)
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