C is a general-purpose computer programming language used for operating systems, games and other high performance work.
7
votes
3answers
936 views
Career in Embedded Systems For CS Major
I'm entering my last few semesters of a CS degree and looking to start a career in Embedded Systems. From talking to a lot of people it seems like I might have been better off with a Computer ...
8
votes
3answers
769 views
What are the typical naming conventions for OO C public and private functions?
Short Question
Is there a typical way to name 'public' and 'private' members of an OO C project?
Background
I fully understand that public and private members do not really exist in the C language. ...
2
votes
2answers
392 views
Is there any advantage to learning C first?
I've got a little bit of history with programming, having gotten my start with Visual Basic. I let it slide as a hobby from a little after VB6 up until just a year or so ago when I got on the iPhone ...
6
votes
4answers
489 views
Semi-intelligent “diff” utility
Part of the QA steps required for a project I am tangentially involved with require the person who is responsible to integrate new version of source file to first calculate how many lines have been ...
0
votes
3answers
305 views
How can I teach my 12 years old brother how program? [duplicate]
Possible Duplicate:
What are some good tools for introducing kids to programming?
Explaining programming to a child
I have a 12 years old brother whom asks me how he can build a website, ...
15
votes
8answers
1k views
Reverse engineering: what is it really good for? [closed]
I have some innocent/beginner questions:
What is reverse engineering good for?
As a programmer, should I learn the art of reverse engineering?
What are the benefits to a programmer who is ...
1
vote
1answer
128 views
Advice sought: highly technical app idea - do I employ someone or do it myself? [closed]
I'm a TV producer in London but also an enthusiastic amateur coder and web designer. I started with VB6 and then moved onto C/PHP/Obj-C. I've got a couple apps in the app store, I mess around a lot ...
66
votes
19answers
4k views
Is it ok to replace optimized code with readable code?
Sometimes you run into a situation where you have to extend/improve some existing code. You see that the old code is very lean, but it's also difficult to extend, and takes time to read.
Is it a good ...
7
votes
10answers
1k views
How do these hotshot developers keep changing their technology base?
Yesterday I was watching a lynda.com iphone development video and this developer started telling about how he has worked on 17 different languages from the days of mainframes in assembly/Cobol to now ...
9
votes
7answers
2k views
How to get started in opensource projects and programs [duplicate]
I am interested in starting to learn how to contribute to open source projects and Linux in general. I am a first year B.Sc. Computer Science student this year and we use c++ as our main programming ...
0
votes
3answers
674 views
How to create interest in programming? [closed]
I am student of 3rd year software engineering, and I find myself nowhere in field of programming.
I know basics of programming languages like C, C++, Java, Visual Basic, HTML, JAVAScript, CSS and ...
1
vote
1answer
201 views
hash with file instead of array
Is it possible to use hash function but with File instead of Array, and it's gonna be saving the record in a file position and then search will fseek to that position, but I'm not sure how to open a ...
8
votes
10answers
1k views
Preferring Python over C for Algorithmic Programming
I've been studying a bit of algorithms and have been looking at sites like SPOJ.pl TopCoder etc. I've seen that programmers prefer C or C++ usually for most algorithmic programming contests.
Now ...
8
votes
5answers
407 views
How to avoid the pitfalls of static analysis
I'm working at a company that would score 11 on Joel Test - at least on paper.
In practice, however, nothing works quite as well as expected, and the project has been on DEFCON 1 for half a year. ...
6
votes
1answer
430 views
Are there any FOSS operating systems available that conform to NASA's JPL coding standards?
I, like many others, have been completely enamored with the recent successful landing of Mar's Curiosity rover. After reading a couple of articles, and following a few links, I've found a couple C ...
-2
votes
3answers
349 views
Associativity in C
int i = 2*5/2;
int j = 2*(5/2);
printf("%d\n,%d\n",i,j);
Variable Associativity: when I run this program, the first statement gives me i = 4; Shouldn't it give me 2, because according to BODMAS ...
13
votes
1answer
588 views
Why does the C library use macros and functions with same name?
I am reading 'The Standard C Library' by PJ Plauger which is really interesting. The book explains not only how to USE the library but also how it is implemented.
I have finished reading the ctype.h ...
24
votes
2answers
1k views
Why was the percent sign (%) chosen as the format specifier for the printf family of functions?
Everyone knows that, at least in C, you use the printf family of functions to print a formatted string. And these functions use a percent sign (%) to indicate the beginning of a format specifier. For ...
56
votes
11answers
597 views
Have you dealt with space hardening?
I am very eager to study best practices when it comes to space hardening. For instance, I've read (though I can't find the article any longer) that some core parts of the Mars rovers did not use ...
0
votes
0answers
202 views
Which programming language is Curiosity written in? [duplicate]
Possible Duplicate:
What is the Mars Curiosity Rover's software built in?
I only recently came across an article that stated there was well over 500,000 lines of code in Curiosity and I ...
3
votes
4answers
404 views
strategies to keep tabs of memory leaks in non memory-managed languages
When it comes to non memory managed languages such as C, C++ or Fortran (my case), it becomes increasingly difficult to keep track of memory allocation/deallocation, especially when ownership must be ...
7
votes
3answers
779 views
Make use of design patterns in C?
Design patterns are useful for object oriented languages.
But how can a non-object-oriented language such as C make of use them?
0
votes
1answer
244 views
Is it possible to call a Javascript function from C?
I'd like to find a way to call Javascript functions from C. Are there any language bindings available for this purpose? I'm trying to make a library of Javascript functions accessible from C. ...
9
votes
3answers
472 views
Lock-free IPC in Linux for multi-core processors
I'm trying to find a way to write an application with lock-free IPC on Linux, in C, with multi-core processors.
Let's assume I have process 1 and process 2 that write to a FIFO or shared memory. Then ...
65
votes
16answers
6k views
Do the young minds need to learn the pointer concepts?
Why did the C master Dennis Ritchie introduce pointers in C? And why did the other programming languages like VB.NET or Java or C# eliminate them? I have found some points in Google, and I want to ...
6
votes
1answer
648 views
“Read” a file without using a file pointer
I was asked this question in an interview. I'm somehow supposed to "read" a file into my C program as input without using a file pointer (including "f" functions, e.g. fgets, fscanf etc.). I'm also ...
-5
votes
2answers
256 views
what will be the Output of the following code written in “ C”?
#include<stdio.h>
void main()
{
char ***p="hello";
printf("%c",++*p++);
}
I haven't understand the concept of (*) indirection uses here three times.
When i compiled this program then the ...
2
votes
1answer
191 views
Including local headers first
So I read up on the ordering of your includes, and this guy suggested you include your local header first so as to make sure it doesn't have prerequisites. Ok, I get that. I'm on board. The whole ...
2
votes
3answers
269 views
Materials on structural languages design?
There is plenty of material about designing software for object oriented programming. Do you know of any good materials for pure structural programming? I am working purely in C and while I can use ...
5
votes
6answers
592 views
Are there any good books on how to design software? [closed]
I've been programming for a while and I think I write clean code. But I do this by hacking away, tinkering and testing things until I feel good about the functionality, and then coming in and ...
2
votes
2answers
260 views
Multi cores/CPUs with locks
I'm not sure how the locks will work with multi processors/cores, I'm going to use shared memory in my application or FIFO, what worries me is the locks, I have a server with 2-CPU, how the lock will ...
2
votes
9answers
528 views
Confusion of scope of a variable: Is Global Variable a solution?
I am newly learning C Programming.
When we have a C Program with lot of functions, parameter passing, calling and all - It becomes a great problem as to which variable must be declared where.
My ...
15
votes
10answers
1k views
What are the best practices regarding unsigned ints?
I use unsigned ints everywhere, and I'm not sure if I should. This can be from database primary key id columns to counters, etc. If a number should never be negative, then I will always used an ...
2
votes
1answer
142 views
How to run thread if multiple data is insert in the multiple table
I'm facing problem in gsoap , if two user go to register
at a same time then database is
locked, i think its threading problem ,
how to handle it, please insist me. I am running multiple ...
1
vote
0answers
16 views
Database lock on gSoap server during storing data in table [duplicate]
Possible Duplicate:
How to run thread if multiple data is insert in the multiple table
I am getting the values from the android app & storing onto the server using sqlite. first time ...
5
votes
3answers
276 views
Starting on a large project, should I split it into more concise parts?
Background: Currently an intern at a company and working on repurposing older programs (still in use, but for different departments) for use in testing new hardware. The new hardware is different in ...
0
votes
2answers
264 views
tcp retransmission queue
I'm trying to understand how tcp retransmission queue works so I can implement it in my application that uses TCAP over SCTP.
What I understood from the TCP queue is that every message is saved in ...
-2
votes
2answers
344 views
Shouldn't storage classes be taught early in a C class or book? [closed]
Shouldn't storage classes be taught early in a C class or book?
I notice that a lot of books, even some of the better ones, covert it toward and end of the book and some books just add it as an ...
2
votes
2answers
308 views
IPC linux huge transaction
I'm building and application that requires huge transactions/sec of data and I need to use IPC to for the mutithreaded mutliprocceses communication, I know that there are a lot of methods to be used ...
6
votes
2answers
329 views
Need help eliminating dead code paths and variables from C source code
I have a legacy C code on my hands, and I am given the task to filter dead/unused symbols and paths from it. Over the time there were many insertions and deletions, causing lots of unused symbols. I ...
4
votes
1answer
399 views
What are the key terms rvalue and lvalue?
Many of the times my compiler shows errors like Lvalue or Rvalue Required.
What are the Lvalues and Rvalues in C or any programming languages?
Is a pointer constant a rvalue?
2
votes
1answer
238 views
Graphics Library [closed]
I would like to know about high end graphics library in C and Fortran. I have heard about OpenGl and Direct X. But I find that OpenGL is practically low end library. Is Direct X is in C too?
I ...
2
votes
1answer
873 views
FIFO lock with mutiple threads/processes
I need to use FIFO in my application in linux+C, I have multiple threads and processes, I read some where that writing to a FIFO is atomic below some value (I believe 4k) especially I'm writing max of ...
2
votes
1answer
212 views
Is the Leptonica implementation of 'Modified Median Cut' not using the median at all?
I'm playing around a bit with image processing and decided to read up on how color quantization worked and after a bit of reading I found the Modified Median Cut Quantization algorithm.
I've been ...
1
vote
3answers
217 views
How to use correctly the comments in C/++ [duplicate]
Possible Duplicate:
Style and recommendations of commenting code
I'm learning to program in C and in my stage, the best form to use correctly the comments is writing good comments from the ...
0
votes
1answer
115 views
Tool to visualize values from variables during the execution of a program in C
I just need to see what is stored, in realtime, in some particular variables and struct used by an application written in C.
I need something like the stack tracer that comes with the ADT plugins for ...
6
votes
4answers
557 views
Undefined behaviour in Java
I was reading this question on SO which discusses some common undefined behavior in C++, and I wondered: does Java also have undefined behaviour?
If that is the case, then what are some common causes ...
2
votes
2answers
208 views
Communication between state machines with hidden transitions
The question emerged for me in embedded programming but I think it can be applied to quite a number of general networking situations e.g. when a communication partner fails.
Assume we have an ...
3
votes
5answers
729 views
Understanding hand written lexers
I am going to make a compiler for C (C99; I own the standards PDF), written in C (go figure) and looking up on how compilers work on Wikipedia has told me a lot. However, after reading up on lexers ...
2
votes
3answers
580 views
C Flexible Arrays: When did they become part of the standard?
I learned to program in C many years ago, and used C steadily for about 10 years.
These days, I occasionally have to look at C code, because our Informix 4GL RDS customized runners also contain C ...
