Test for carriage return in playground, console.read()

Question

So my mystery character was a carriage return

Now I want to test for carriage return so I can skip it.

How do I test for carriage return if I have used Console.Read() ?

if( (ch != 'N') || (ch != '/r')//Too many characters in character literal
if( (ch != 'N') || (ch != char(13)) //Invalid expression term 'char'
if( (ch != 'N') || (ch != chr(13)) //The name 'chr' does not exist in the current context

https://code.sololearn.com/cbVIGnZyCT97

Answer 1

A carriage return is denoted as '\r' not '/r'. Are you sure you don't just need to remove the carriage return from the String?

string input;
input.TrimEnd('\r', '\n');

To get the char for a given ASCII value, use (char) 13

Answer 2

Found it, it was \n

Thanks a lot for your help

if( (ch == 'N') || (ch == '\n'))

if the character is N -> stop the program
if the character is \n (newline) -> skip it
else do something nice

Answer 3

Or if you want to keep using int as the type for input then you can just add:
input = Console.Read();
Console.ReadLine();
to catch the remaining newline/carriage return and dispose of it.

Answer 4

Thanks

it works with '/r'

this means the are no syntaxt error anymore

but is still gives the output

"not implemented" so the character read is not a /r (which is 13)

I added a
Console.WriteLine("input key :" + input);

It says this character is
input key :10

What character is this or how do I test for this character ?

It is in the playground so I can't trim the input string

Answer 5

Thanks for the help.

In the final code I used Console.Readline().
To be able to get the choosen operation and the value's in the same line.

https://code.sololearn.com/cbVIGnZyCT97