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i wish to find a program source code for the following fft ,dft, idft
and linear and circular convulution. please if anyone can help me out.
kamal jit sharma
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Whenever I'm after some code that implements a particular algorithm, I typically find myself performing searches for the code I want. It is my most common experience that just asking a question on a forum takes longer than it takes to find the code. When you also allow time for the response to your forum question, it is orders of magnitude slower to ask on a forum than it is to search for code yourself.
And yes, I have done just this for some of the algorithms you mention.
Good luck. 
Simon
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Do you know about Google? Shhhhhhhhhhh it's a secret. 
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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I have an example of for loop like
for( int I = 0; I < 100; i++)
{
If (condition)
{
Method1. Write ‘break’ here or
Method2. I = 100 (make I equal to 100)
}
}
Which method is efficient to use? Why?
Thanx
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Imho break is more efficient because using break will just jump out of the loop while setting the variable 'I' to a value has to perform memory read/write operations, then it will jump to the condition-evaluation part, where it will check the variable against 100 and will then jump out of the loop. Am not sure how smart the compiler is but it might even optimize the later case to a simple break or "value-set" then break itself.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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I would use a control variable.
I strongly advise not to set the loop variable, 'I' in your case, to a bogus value just to exit the loop because you might want to use the variable after the loop.
Something like this:
bool bStop = false;
int nCount;
for( nCount = 0; (nCount < 100) && !bStop; ++nCount )
{
if( condition )
{
bSstop = true;
}
}
if( nCount < 100 )
{
}
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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Either one is fine. I prefer to go the break; route.
"The clue train passed his station without stopping." - John Simmons / outlaw programmer
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
"Not only do you continue to babble nonsense, you can't even correctly remember the nonsense you babbled just minutes ago." - Rob Graham
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The break keyword was designed just for this.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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i use the break key word in my virii like so...
if(DeployCondition)
break ThatGuysPC->HDD;
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killabyte wrote: virii
Should be viruses (even if my ancestors didn't foresee such a proliferation of).
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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I do agree with cPallini.
Use break for your condition.
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I'm glad about your enthusiasm.
BTW it is CPallini, since C stands either for Carlo or the C programming language , both requiring the capital letter.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Resetting your loop counter variable is the worst thing to do. In this simple example, it might seem all OK to you, but what if there are other routines that will depend on the counter variable after the loop is complete? What if you needed to know how many times the loop executed?
vipin_nvk wrote: Which method is efficient to use? Why?
Just exiting out of the loop with a break would be the ideal way, IMHO. You may use a control variable, as another user pointed out as well.
It is a crappy thing, but it's life -^ Carlo Pallini
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Is there any way to perform "TOUCH" (like TOUCH in UNIX) in windows, with out installing any tools?
From the site : "http://support.microsoft.com/kb/69581, I came to know that we can use COPY command to perform TOUCH like operation. and tried the below command. but I got the error "The system cannot find the file specified."
system ( "/COPY C:/Documents and Settings/ms56106/.tdm/CookieSession_Details.txt /B +");
So please help to fix this. Below are the different options I tried, but no clue.
1) I Have executed the below command from command prompt it works fine.
C:\Documents and Settings\ms56106\.tdm> COPY /B "C:/Documents and Settings/ms56106/.tdm/CookieSession_Details.txt" +
1 file(s) copied.
And if try the same from different folder it fails,
C:\Documents and Settings\ms56106> COPY /B "C:/Documents and Settings/ms56106/.tdm/CookieSession_Details.txt" +
The system cannot find the file specified.
0 file(s) copied.
What should I do to run for a different folder?
2) I want the same command to be used in C++ source, for this I tried the same with system(), but it is not working. Please correct me.
tem = C:/Documents and Settings/ms56106/.tdm/CookieSession_Details.txt
system ( "/COPY tem /B +");
Thanks,
Nandu
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I'm suddenly having Déjà vu[^], I believe that I've read this post before.
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i am a new C++ programmer and would like to implement an array based list for 100 integers and would also want to sort them by any integer of my choice.
snyboy with an with an idea on how to go about this? 
phokojoe
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for the array what about :
int myArray[100];
or (way better, easier for sorting)
std::vector<int> myVector;<br />
myVector.reserve(100);</int> // optional
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Maximilien wrote: int myArray[100];
or (way better, easier for sorting)
std::vector myVector;
myVector.reserve(100); // optional
Why do you think sorting a std::vector is easier?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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CPallini wrote: Why do you think sorting a std::vector is easier?
because someone though of writing the std::sort() algorithm maybe...?! 
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someone else possibly though of writing qsort
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Yes, but std::sort() algorithm is faster than qsort!
A C++ programming language novice, but striving to learn
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I have a cmak (connection manager administration kit) dll. Two of it's functions are called when you do Start > Connect To > [the name of the connection]. (custom pre-connect actions) Is it possible to receive windows messages in a dll? I've tried creating a VS2005 Win32 Console Application, opting for a Windows Application, and then just took the code from the main cpp file and entered into the main dll file. But CreateWindow(...); returns an invalid handle indicating that it was not succesful in creating the window. I got the dll project from
C:\Program Files\Microsoft Platform SDK\Samples\NetDS\Ras\ConnectionManager
It's a converted VS6.0 project. (.dsw) All windows message recieving examples I've seen are .exe projects. They say in the help file of cmak that you should implement WM_PAINT in your dll if your pre-connect actions takes a lot of time, which it does. This is a windows message so I thought what they meant was that you have to trap this message. But to do that you need a window (visible or invisible) right?
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Just a guess here, but how about running a message loop in your DLL, i supose the loading/working of the DLL is done from the GUI thread of ...whatever it using the DLL and thus if the DLL takes a long time to finish the GUI of the app becomes unresponsive and "unrefreshed". So i guess what you should do is to run the message queue in your DLL while the processing is being done.
So while your DLL is not done, do something like this:
MSG Msg;
while (GetMessage(&Msg, NULL, 0, 0))
{
if (!TranslateMEssage(Msg)) DispatchMessage(Msg);
}
Of course you somehow need to exit that loop once your DLL is done, but how you do that is up to you. Could also be that you need to filter out WM_PAINT messages from the queue and only dispatch those.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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Hi,
I want to create a HTML like interface using vc++.
I have heard about vc++ using xaml.
Is this best way to do or any other opton is there.
Please suggest me and give me some link related your suggestion.
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