Multi Line Comments [AVOID]

Blommis · **Joined:** Tue Dec 02, 2008 5:59 am **Posts:** 82

Well, if you do have multi-line comments you'd get a 'warning' in the compiler log. I just noticed that the program skips code if you put it close to the multi-line comment (Maybe not skip but it fataly ignores something).

ex:

Code:

//---COMMENT---\\
//----------------\\
while(Running)
{
     //Code Here.
}

I tried to "comment apart" sections of my code and that's how I noticed it. I guess it's a "global" issue which most people do know. But for those who doesn't, now you do!

Tim · **Posted:** Wed Jun 24, 2009 10:04 am

The problem is that you are including the \ after the last comment, which is basically saying this line continues down to the next.

It's like saying:

Code:

//----------------\\ while(Running)
     //Code Here.
}

badut · **Joined:** Mon Jun 01, 2009 10:25 am **Posts:** 50

Tim wrote:

The problem is that you are including the \ after the last comment, which is basically saying this line continues down to the next.

It's like saying:

Code:

//----------------\\ while(Running)
     //Code Here.
}

Wow. Learn something new everyday. I would have thought the correct behaviour is to ignore everything behind //

Tim · **Posted:** Wed Jun 24, 2009 8:29 pm

Not all languages behave this way, but C++ does. I don't think I know of any syntax highlighters that pick up on it either. It's more commonly seen when you are using preprocessor directives or multi-line strings (to make a long string more readable):

Code:

#define SomeThing "I am\
a multi line string"

Code:

#include <stdio.h>

// asd \
asd
int main() {
    printf("I\
 like\
 to\
 code\
 weird");

    return 0;
}

In short, I don't recommend using it

. I only ever use it in JavaScript when I am building a large string for HTML output:

Code:

var Content = "\
<table>\
<tr>\
</tr>\
</table>\
";

Again, languages are different.

Edit:
PHP is one such language that behaves differently (this will produce an error):

Code:

// Some comment \
Rar
echo "Hi"; 

cjp · **Joined:** Thu Apr 16, 2009 1:51 pm **Posts:** 25

why not just use C-style comment /* */ to do multiple lines comments?

for temporarily unused code #if 0 is better

caldiar · **Joined:** Wed Aug 19, 2009 9:49 pm **Posts:** 1

cjp wrote:

why not just use C-style comment /* */ to do multiple lines comments?

for temporarily unused code #if 0 is better

That's what I do. Not sure why OP isn't doing that as well.

Multi Line Comments [AVOID]

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