Programming :: C++ Programming With Simple RTAI Functions Outputing Words?

Apr 11, 2011

I need help as I am not proficient with Linux C++ Programming. There are two parts which I need to do in the coding provided below.

1. Produce the program so it can output the word "Hey there!" and wait two minute and print the word "See you later!".

2. Produce the program that will output the text "Cool" every 20 seconds by setting a periodic task.

#include <linux/kernel.h>
#include <linux/module.h>
int init_module(void)
printk("Hey there!


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Programming :: Define Functions Within Other Functions In C++?

Mar 11, 2010

Is it possible to define functions within other functions in C++? I know it is the case in other languages.

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Programming :: Build A Simple Program For C Programming Class?

Feb 12, 2011

im trying to build a simple program for my C programming class, this is the source code

#include <stdio.h>
int main()
int length, width, length, height, area, perimeter;
perimeter = width + length + height;
area = width * length + heigth;


i dont see any error (you might)but every time i run it it runs but after it asks me to input for the width i do it but it doesn't take me to the length, it just stays blank until i input another value in the same place for the width, it asks me for 4 inputs in total i don;t know why, and after i run it different times it gives me different values for the perimeter and are. how can I fix this?

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Programming :: How To Compile / Simple Tutorial For Making Simple Program

Oct 7, 2010

i'm a college student studying pc programing, and i was given today a special work and i have to program using miranda... which i've never used it >.< can anyone give me a hand to where to download, how to compile, and a simple tutorial for making a simple program or something?

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May 8, 2009

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Programming :: Add Text Between Two Words?

Mar 3, 2011

For example if i have the following "OneThree" and i want to add the word "Two" between "one" and "three". To have "OneTwoThree" How can i do this?

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Programming :: Array Containing Words In C?

Sep 24, 2010

This array is supposed to contain 12 elements (names of the month) What I want to achieve is that depending on some user input (a number 1-12) a full name of one of the months will be displayed, eg.

scanf("%d", &month);
printf("The month is %c", months_names[month]);

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Jun 16, 2010

User submits a ms word file, and the php can recognize the number of words? Is it only possible for ms win server?

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Programming :: Where Are Described Functions That Can Be Used With Stap

Mar 26, 2011

could you please explain few questions about systemtap.

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Programming :: Awk To Extract Phrase Between Two Words On A Line?

May 25, 2010

im trying to find a way to extract the phrase between the words Connection and is (ie the underlined words below). Can we use awk to do this? How? Is it the best command to use?


[06:25:00][i] Connection at Plant A is live
[06:25:00][i] Connection at Building_C is not live
[07:25:00][i] Connection at Terminal D is down

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Feb 17, 2010

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Programming :: Script To Exclude Words From A Lists?

Jun 16, 2010

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Programming :: Definitions For C Library Functions ?

Apr 24, 2010

Where are the definitions for C library functions located? It was just recently that I realized that header files don't actually define any functions, they merely include their prototypes.

For instance, stdio.h includes the following line:


This just means that the definition of printf() is located in another file. What file? Is there some kind of default shared object file that is automatically included during compilation?

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Programming :: Unable To Use An Alias In The Ksh Functions

Apr 4, 2011

I have problem to use an alias that defined in ksh93 script,in the functions in the same script onm Linux.I definied an alias in main: alias echo='echo -e' in order that echo will read backslashes but when i executed it in function, the alias didnt work, and performewd a regular echo, without -e

cat test.ksh
alias echo='echo -e'


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Programming :: Check The Db For Some Value And Run Some Functions To Do Some Checks?

May 15, 2011

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Programming :: Defining Functions - What Is The Difference?

Aug 12, 2010

But what is the difference between this...

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function my_fucnction {


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Jan 4, 2011

Im implementing a chat application using Jabber/XMPP and gloox framework which should send and receive messages concurrently in Ubuntu Linux.

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Programming :: Nesting Switch Functions In C?

Apr 12, 2010

I am trying to write a simple program in C that involves nesting switches. For example switch 1 offers an option to go to module 1 or 2 or quit. when I go to module 1 there is another switch function offering two or more choices.

I can select either module 1 or 2 at the start of the program and the selection text for, say, module 1 prints to screen but then exits without allowing a second selection to be entered.

I tried using free([first selection]) thinking that might do the trick but it doesn't.

Is it possible to next switches on after another in C?

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Programming :: Macos Does Not Have Barrier Functions?

May 9, 2010

The pthreads library on macos does not have barrier functions (pthread_barrier_t ....). Is there a way to get around this? I know I can do :

#ifdef __APPLE__
pthread_barrier_t ...
my_barrier ...

But I would like to avoid this approach as there are a lot of places in my program where I would have to make this change. Can I perhaps rebuild the pthreads library on macos without affecting other apps ?

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Oct 12, 2010

i need to calculate the number of words containing letter e in a textfile.

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Programming :: Error With Socket Shared Between Functions?

Dec 21, 2010

Let's show the problem: I have a socked connection (in a fd var). In certain moment, I need to use the same socket in two threads. Lets see in the example:

Code: int main(void)
int fd; // the socket


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Programming :: Wrapping Around Functions With Different Return Types?

Feb 1, 2010

I have functions which return different data like: int, char*, double...

I also have a list of datatypes (INTEGER, TEXT, REAL...) which can be returned.

I need to map a datatype with function, which purpose is to return it. Therefore, when I determine a datatype, I would like to call the required function without doing switch all the time.

My idea is to have an array of structs like this:

struct type_func_map
int type;
void (*func_wrapper_int)(void); //void (*func_wrapper_text)(void); void (*func_wrapper_real)(void);


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Apr 11, 2011

I feel like there should be a cleaner way of doing this. I have one file, for example "a.cpp", calling a function from another file, "b.cpp". Currently I have it set up so that header for "b", "b.h", has the declaration of its functions. And then I'm just including "b.h" in "a.cpp". Do I have to include the "b" header file in "a" to be able to call a function from "b"? Or is there a better way I could be doing this? Like doing something different at compile?

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Programming :: C File Functions Crash Unless Root

Jun 24, 2011

I've encountered a problem when running a simple bit of code, I'm using c to read write data to a binary file. It works fine when I run as root. However when I run as a user it produces the file, however when I try to open / write after it's produced it caused a seg fault. Is there any reason file functions ( fopen etc ) would work for root and not a user and is there a way to fix this?

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Programming :: Calling Kernel Functions From Userspace?

Feb 5, 2010

I'm trying to call some kernel functions from userspace, but I'm not sure if I'm doing it right. The functions control a pulse width modulator on an embedded platform. To pick one at random, the function:

struct pwm_device *pwm_request(int pwm_id, const char *label);
is defined in linux/pwm.h, and the implementation uses the macro EXPORT_SYMBOL(pwm_request), so I should be able to call this from user-space... right?

Anyway, I've got linux/pwm.h to #include in my source so the compiler knows what it's doing, but what do I link against? The only place in by kernel build tree where I can see a symbol pwm_request defined is in object files like vmlinux.o, built-in.o in the directory, etc. which I don't think I should be linking against.

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Programming :: How To Find Man Page Of Kernel Functions

Aug 2, 2010

My distribution is Fedora 12. When I want to get the infos of kernel functions such as printk, i type man printk, failed. I look up some articles and learn that in some distributions the kernel functions is in section 9 of man page. Then i type man 9 printk also no reply. How can i get man pages of kernel functions ?

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Programming :: How Many Of PHP Functions And Operators Remembered To Code

Jun 7, 2011

So if you are a PHP-programmer (average one) and code for money, how many of funtions and operators of PHP should you remember by heart (in real life)? I was looking through and man there are millions of tons of them!

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Programming :: Invoke Cairo Functions From Glade?

Feb 12, 2011

I have created a glade file which so far have two regions in it:

1) On the right division is a toggle button which calls a C script when enabled.

2) I have a drawing area, in which I would like to plot a point (X-Y scatter plot). The plot should be generated dynamically using a C script. I am not sure how the integration between the two is possible for a drawing area.

In glade what properties of drawing area should I set? eg.expose event, realize etc. I was thinking of using cairo for generating the plot.

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Programming :: How To Use Java Functions In Python Script?

Feb 27, 2010

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Programming :: Documentation For SoundTouch Library And Its Functions

Sep 29, 2009

Do you know where can I find documentation to SoundTouch library a its functions?

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