How can I erase the current line printed on console in C from the end?

Question

I need to erase a printed character in a new line from the end. That is if the statement is printf("C++") I need to erase those 2 "++" printed and get the output "C".

 printf("hello"); printf("\rbye");

Using the above escape sequence '\r', replaces it only from the printed line beginning to get the output 'byelo', how to do it from the end to get 'hebye'?

ncurses is a library that provides extensive cursor control useful for console applications. — ryyker
– ryyker, Commented Sep 19, 2015 at 16:13

Community · Accepted Answer · 2017-05-23 12:14:14Z

1

You can use the backspace ASCII character:

printf("hello"); printf("\b");

Result:

hell

UPD: see also this answer

edited May 23, 2017 at 12:14

CommunityBot

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answered Sep 19, 2015 at 15:51

Alexander Udalov

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1 Comment

too honest for this site Over a year ago

It actually is implementation specific. The standard does not guarantee this behaviour (try this when redirecting the text to a printer).

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