Hi,
Is using // for a comment standard C?
Thanks,
Joe
59  3815 
Joe Van Dyk wrote: Hi,
Is using // for a comment standard C?
It was standardized in C99 although it was widely supported as a common
extension before that time. It is probably the most widely supported
C99 feature.
Robert Gamble
Robert Gamble wrote: Joe Van Dyk wrote:
Hi,
Is using // for a comment standard C?
It was standardized in C99 although it was widely supported as a common
extension before that time. It is probably the most widely supported
C99 feature.
That's what I thought.
(I'm converting all our comments to be doxygen-compatible and I prefer
to use ///.)
Thanks,
Joe
Robert Gamble wrote: Joe Van Dyk wrote:
Is using // for a comment standard C?
It was standardized in C99 although it was widely supported as a
common extension before that time. It is probably the most widely
supported C99 feature.
It is also highly unwise to use it in any media (such as usenet)
where line wrapping can occur.
--
"I don't know where bin Laden is. I have no idea and really
don't care. It's not that important." - G.W. Bush, 2002-03-13
"No, we've had no evidence that Saddam Hussein was involved
with September the 11th." - George Walker Bush 2003-09-17
Joe Van Dyk wrote: Robert Gamble wrote: Joe Van Dyk wrote:
Is using // for a comment standard C?
It was standardized in C99 although it was widely supported as a
common extension before that time. It is probably the most widely
supported C99 feature.
That's what I thought.
(I'm converting all our comments to be doxygen-compatible and I
prefer to use ///.)
Not considered wise from a portability viewpoint.
--
"I don't know where bin Laden is. I have no idea and really
don't care. It's not that important." - G.W. Bush, 2002-03-13
"No, we've had no evidence that Saddam Hussein was involved
with September the 11th." - George Walker Bush 2003-09-17
CBFalconer wrote: Joe Van Dyk wrote: Robert Gamble wrote: Joe Van Dyk wrote:
Is using // for a comment standard C?
It was standardized in C99 although it was widely supported as a
common extension before that time. It is probably the most widely
supported C99 feature.
That's what I thought.
(I'm converting all our comments to be doxygen-compatible and I
prefer to use ///.)
Not considered wise from a portability viewpoint.
gcc continues to support both a pre-processor which does not process //
comments, and one which does.
On Tue, 20 Jun 2006 23:41:23 -0400, CBFalconer <cb********@yah oo.com>
wrote: Robert Gamble wrote: Joe Van Dyk wrote:
Is using // for a comment standard C?
It was standardized in C99 although it was widely supported as a
common extension before that time. It is probably the most widely
supported C99 feature.
It is also highly unwise to use it in any media (such as usenet)
where line wrapping can occur.
Iif you stuff a really long comment in a single line, you may be
flagged for having very poor coding/commenting style, but it is no
good reason to abandon the use of //
Zara
Zara wrote: On Tue, 20 Jun 2006 23:41:23 -0400, CBFalconer <cb********@yah oo.com>
wrote:
Robert Gamble wrote: Joe Van Dyk wrote:
Is using // for a comment standard C?
It was standardized in C99 although it was widely supported as a
common extension before that time. It is probably the most widely
supported C99 feature.
It is also highly unwise to use it in any media (such as usenet)
where line wrapping can occur.
Iif you stuff a really long comment in a single line, you may be
flagged for having very poor coding/commenting style, but it is no
good reason to abandon the use of //
Is there any good reason to adopt its use? Code should not
depend on white-space between tokens. IMO, using '\n' as the
comment termination character is one of the top 10 really bad
ideas in the history of computing.
"Bill Pursell" <bi**********@g mail.com> writes: Zara wrote: On Tue, 20 Jun 2006 23:41:23 -0400, CBFalconer <cb********@yah oo.com>
wrote: >Robert Gamble wrote:
>> Joe Van Dyk wrote:
>>>
>>> Is using // for a comment standard C?
>>
>> It was standardized in C99 although it was widely supported as a
>> common extension before that time. It is probably the most widely
>> supported C99 feature.
>
>It is also highly unwise to use it in any media (such as usenet)
>where line wrapping can occur.
Iif you stuff a really long comment in a single line, you may be
flagged for having very poor coding/commenting style, but it is no
good reason to abandon the use of //
Is there any good reason to adopt its use? Code should not
depend on white-space between tokens. IMO, using '\n' as the
comment termination character is one of the top 10 really bad
ideas in the history of computing.
printf("Hello,
world\n");
Personally, I really like end-of-line comments ("//" in C99 and C++,
"#" in Perl and shell scripting, "--" in Ada). It's easy to comment
out large blocks of code given a decent editor, there's no ambiguity
about nested comments, and if you're looking at the middle of a large
comment block there's no question that it's in a comment block.
But of course it's a matter of taste, and I don't expect to convince
anyone.
One good reason to avoid // comments, as much as I like them, is that
they're not universally supported; another is the Usenet line-wrapping
problem. But the latter could be easily addressed by keeping your
lines reasonably short so they don't wrap.
--
Keith Thompson (The_Other_Keit h) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.
Joe Van Dyk said: Hi,
Is using // for a comment standard C?
Yes and no. Several reasons have been given for avoiding them in your C90
programs, but nobody appears to have mentioned the fact that modding down
ANSI conformance to allow them will, in some implementations , also
necessarily involve removing some other diagnostic messages. For example,
on the implementation I use most during development, enabling // comments
involves disabling a great many ANSI conformance checks. It's too high a
price.
--
Richard Heathfield
"Usenet is a strange place" - dmr 29/7/1999 http://www.cpax.org.uk
email: rjh at above domain (but drop the www, obviously) This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: William C. White |
last post by:
Does anyone know of a way to use PHP /w Authorize.net AIM without using
cURL? Our website is hosted on a shared drive and the webhost company
doesn't installed additional software (such as cURL) on the server because
of that. Our site will have an SSL certificate next week, so I would like
to use AIM instead of SIM, however, I don't know how to send data via POST
over https and recieve data from the Authorize.net server over an https...
|
by: Albert Ahtenberg |
last post by:
Hello,
I don't know if it is only me but I was sure that header("Location:url")
redirects the browser instantly to URL, or at least stops the execution of
the code. But appearantely it continues to execute the code until the
browser send his reply to the header instruction. So an exit(); after each
redirection won't hurt at all
|
by: James |
last post by:
Hi,
I have a form with 2 fields.
'A'
'B'
The user completes one of the fields and the form is submitted.
On the results page I want to run a query, but this will change
subject to which field is completed.
|
by: Ollivier Robert |
last post by:
Hello,
I'm trying to link PHP with Oracle 9.2.0/OCI8 with gcc 3.2.3 on a Solaris9
system. The link succeeds but everytime I try to run php, I get a SEGV from
inside the libcnltsh.so library.
354 roberto@ausone:Build/php-4.3.2> ldd /opt/php4/bin/php
libsablot.so.0 => /usr/local/lib/libsablot.so.0
libstdc++.so.5 => /usr/local/lib/libstdc++.so.5
libm.so.1 => /usr/lib/libm.so.1
|
by: Richard Galli |
last post by:
I want viewers to compare state laws on a single subject.
Imagine a three-column table with a drop-down box on the top. A viewer
selects a state from the list, and that state's text fills the column below.
The viewer can select states from the drop down lists above the other two
columns as well. If the viewer selects only one, only one column fills. If
the viewer selects two states, two columns fill. Etc.
I could, if appropriate, have...
| | |
by: Albert Ahtenberg |
last post by:
Hello,
I have two questions.
1. When the user presses the back button and returns to a form he filled
the form is reseted. How do I leave there the values he inserted?
2. When the user comes back to a page where he had a submitted POST data
the browser keeps telling that the data has expired and asks if repost. How
to avoid that? I tried registering all POST and GET vars as SESSION vars but
|
by: inderjit S Gabrie |
last post by:
Hi all
Here is the scenerio ...is it possibly to do this...
i am getting valid course dates output on to a web which i have designed
....all is okay so far , look at the following web url
http://www.mis.gla.ac.uk/biquery/training/
but each of the courses held have maximum of 8 people that could be
|
by: Jack |
last post by:
Hi All,
What is the PHP equivilent of Oracle bind variables in a SQL statement, e.g.
select x from y where z=:parameter
Which in asp/jsp would be followed by some statements to bind a value to :parameter
I dont like the idea of making the SQL statement on the fly without binding parameters as I
dont want a highly polluted SQL cache.
|
by: Sandwick |
last post by:
I am trying to change the size of a drawing so they are all 3x3.
the script below is what i was trying to use to cut it in half ... I
get errors.
I can display the normal picture but not the results of the picture
half the size. The PHP I have installed support 1.62 or higher. And
all I would like to do is take and image and make it fit a 3x3.
Any suggestions to where I should read or look would be appreciated.
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
| | |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| | |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |
