Code ascii of \n

Hello

for some systems,
it's 13 in decimal, which is D in hex (CR for carriage return, or enter key)
for others, 13 is not enough, an additional code is needed to move down a line, which is 10 (down arrows)
that is \13\10 in decimal or \D\A in hex

the \n in C can sometimes cause a problem, as it can represent
one or two characters depending on the case, and we have to test
that's why some text files opened with Windows Notepad are sometimes truncated.

best regards

--
¤

The \n in C can sometimes pose a problem, as it can represent
one or two characters depending on the case,

That's right!

\n it's:
- 13 followed by 10 on Windows (0D 0A)
- 10 on Unix (0A)
- 13 on Macintosh (0D)

And the worst part is that some compilers on Windows (for example, C#) consider that \n only means 0A.

Your question is not very clear:
- If you are making requests to a server, then you are acting as an HTTP client.
- If Mozilla or Konqueror behaves differently with your software, then you are acting as an HTTP server.

In any case, it reminds me of when I created a web server in Tcl,
the lines of headers and responses end with a CRLF, either "\x0d\x0a" or "\r\n".

Examples of HTTP exchange (captured with Ethereal):
http://thierry.larmoire.free.fr/dev/test/pwd.html

the \n in C can sometimes pose a problem, as it can represent
one or 2 characters depending on the situation,

more precisely, it is the printf, write functions and their ilk that transform the "\n" into something else according to the configuration of the pipe (file, pipe, socket ...)

for example, in Tcl, when I talk about HTTP header or response, I configure the sockets like this:

fconfigure $sock -translation crlf

and

puts -nonewline $sock "GET / HTTP/1.0\n"

sends to the socket "GET / HTTP/1.0\r\n"
and

string length "\n"

is equal to 1

the compilers, on the other hand, always transform the "\n" into 0x0a.
if you open an executable generated from C that contains a string "toto\n", with a hex editor you will find the string toto followed by the character 0x0a only. by the way, strlen("\n") is always 1.

Thank you all!

It’s true that it’s complicated!

I will try all of that...

See you!