473,466 Members | 1,658 Online
Bytes | Software Development & Data Engineering Community
Create Post

Home Posts Topics Members FAQ

what is the meaing of this int _port; declaration

36 New Member
Please can any one able to explain about this type of declaration.

int _port;
Mar 8 '08 #1
3 1628
ashitpro
542 Recognized Expert Contributor
Please can any one able to explain about this type of declaration.

int _port;
"_port" is variable name. that's it.
You can use "_" in declaring variables;
Mar 8 '08 #2
mdshafi01
36 New Member
What is the difference between using
int port and int _port;

shafi
Mar 8 '08 #3
ashitpro
542 Recognized Expert Contributor
What is the difference between using
int port and int _port;

shafi
Variable name starting with '_' are mostly used by compiler developers, and system libraries, Indicating the special meaning or importance of that variable.

You can use it,but it creates other impression.
Better you use 'iPort'. It is much more readable.
Mar 8 '08 #4

Sign in to post your reply or Sign up for a free account.

Similar topics

70
by: Roy Yao | last post by:
Does it mean "(sizeof(int))* (p)" or "sizeof( (int)(*p) )" ? According to my analysis, operator sizeof, (type) and * have the same precedence, and they combine from right to left. Then this...
15
by: M.Siler | last post by:
<HTML> <HEAD> <TITLE></TITLE> <SCRIPT> <!-- var factor_val = new Array(8,7) factor_val = 68.8 factor_val = 55
20
by: Sam | last post by:
Hi I'm learning to code with C++ and wrote some very simple code. I think it's consistent with every rule but always got compiling errors that I don't understand. The code include 5 files as...
9
by: Curious Student | last post by:
Some places till now, I've seen function prototypes within functions instead of in the global declaration space, which I thought was the way. I thought it was <I>only</I>: int myfunction(int,...
15
by: Greenhorn | last post by:
Hi, when a function doesn't specify a return type ,value what value is returned. In the below programme, the function sample()is returning the value passed to 'k'. sample(int); main() { int...
3
by: baumann.Pan | last post by:
hi all, in the linux kernel code compiler.h i read #define likely(x) __builtin_expect(!!(x), 1) #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96) #define __builtin_expect(exp,c)...
3
by: baumann | last post by:
hi all, i could not understand the "unnecessary" pointer comparison. /* 207 * min()/max() macros that also do 208 * strict type-checking.. See the 209 * "unnecessary" pointer comparison....
14
by: DaTurk | last post by:
I am makeing a Multicast server client setup and was wondering what the difference is between Socket.Connect, and Socket.Bind. It may be a stupid question, but I was just curious. Because I...
22
by: nospam_news | last post by:
I currently get asked about my usage of "auto". What is it for? The keyword is clearly superflous here. In contrast to the huge majority of C/C++ developers I write definitions very explicitly...
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
marktang
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,...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
Oralloy
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,...
0
jinu1996
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...
0
agi2029
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,...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...
0
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...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.