Re: LONGLONG - C / C++ / MFC Discussion Boards

Re: LONGLONG

toxcct11-Apr-05 23:27

toxcct

11-Apr-05 23:27

you forgot to end your string with

mystring[i] = '\0';

that doesn't happend with my CString (see here[^])

of course, int i; should be declared before for() loop...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: LONGLONG

Joel Holdsworth12-Apr-05 0:06

Joel Holdsworth

12-Apr-05 0:06

Yes the thought just popped into my mind, and I just returned now to correct my mistake.

Joel Holdsworth

Wanna give me a job this summer?
Check out my online CV and project history[^]

Re: LONGLONG [edited]

toxcct11-Apr-05 23:08

toxcct

11-Apr-05 23:08

datas are written in binary format in memory...

however, if you like to print an integer in binary format, this link[^] should help.
here is the sample :

<font color=#0000FF>LONGLONG</font> iVal = 125932;   <font color=#008000>// For example</font>
CString strVal = <font color=#808080>""</font>;      <font color=#008000>// CString because more easy to use</font>

<font color=#0000FF>for</font> (<font color=#0000FF>int</font> i = 0; i < <font color=#0000FF>sizeof</font>(LONGLONG); i++) {
    strVal.Insert(0, ((iVal & 0x00000001) ? <font color=#808080>"1"</font> : <font color=#808080>"0"</font>));
    iVal >>= 1;
}

cheers,

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: LONGLONG

fardak11-Apr-05 23:42

fardak

11-Apr-05 23:42

Thank you.
Pls read my reply to Joel Holdsworth.

Re: LONGLONG

toxcct11-Apr-05 23:47

toxcct

11-Apr-05 23:47

fardak wrote:
Pls read my reply to Joel Holdsworth

hey, already done...

you define mystring as a TCHAR[], which need a trailing '\0' to be displayed correctly...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: LONGLONG

fardak12-Apr-05 0:05

fardak

12-Apr-05 0:05

Thanks again.
I rewrote this:
void CMyBitsDlg::ConvertLLtoBin()
{ LONGLONG value = 12345;
TCHAR mystring[sizeof(LONGLONG)];
for(int i = 0; i < sizeof(LONGLONG); i++)
mystring[i] = ((value >> (sizeof(LONGLONG) - i - 1)) & 1) ? _T('1') : _T('0');
mystring[i]='\0'; //added
AfxMessageBox(mystring);
}

And the answer is 00111001 which is 39 hexadecimal.
So something is wrong.
But the strange thing happening now is that I have an error memory reading message.

Re: LONGLONG

Joel Holdsworth12-Apr-05 0:11

Joel Holdsworth

12-Apr-05 0:11

Almost correct. You need to change

TCHAR mystring[sizeof(LONGLONG)];

TCHAR mystring[sizeof(LONGLONG) + 1];

and instead of writing

mystring[i]='\0';

try

mystring[sizeof(LONGLONG)] = 0;

I think that might help

Joel Holdsworth

Wanna give me a job this summer?
Check out my online CV and project history[^]

Re: LONGLONG

fardak12-Apr-05 0:26

fardak

12-Apr-05 0:26

Thanks again.
Ok the last version is

void CMyBitsDlg::ConvertLLtoBin()
{ //LONGLONG value = 12345;
LONGLONG value = 0xFF FF FF FF FF FF FF FF;
TCHAR mystring[sizeof(LONGLONG)+1];
for(int i = 0; i < sizeof(LONGLONG); i++)
mystring[i] = ((value >> (sizeof(LONGLONG) - i - 1)) & 1) ? _T('1') : _T('0');
mystring[sizeof(LONGLONG)]='\0';
AfxMessageBox(mystring);
}

And the answer is 11 11 11 11
Instead od a 64 times '1'.
Where the rest has gone ?

Re: LONGLONG

Joel Holdsworth12-Apr-05 0:30

Joel Holdsworth

12-Apr-05 0:30

Read this[^], and see my update original code at the bottom of the tree: http://www.codeproject.com/script/comments/forums.asp?msg=1081046&forumid=1647#xx1081046xx[^]

Joel Holdsworth

Wanna give me a job this summer?
Check out my online CV and project history[^]

Re: LONGLONG

fardak12-Apr-05 0:42

fardak

12-Apr-05 0:42

Thank you for yor time and effort.
I tried you edited code with a value of
0xFF FF FF FF FF FF FF FF (//16 F)
and it gives 64 1's which is the correct answer .
Thanks again.

Re: LONGLONG

Joel Holdsworth12-Apr-05 0:50

Joel Holdsworth

12-Apr-05 0:50

Phew finally - I'm being a donkey today D'Oh! | :doh:

Joel Holdsworth

Wanna give me a job this summer?
Check out my online CV and project history[^]

Re: LONGLONG

toxcct12-Apr-05 0:14

toxcct

12-Apr-05 0:14

hum, well, it seems that the code is printing only the LSB and is missing the 0b 00110000 00111001

did you try my code ?

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: LONGLONG

fardak12-Apr-05 0:35

fardak

12-Apr-05 0:35

Not yet,but I will and tell you about it.
Right now my head is spinning..dangerously!!

Re: LONGLONG

fardak12-Apr-05 1:59

fardak

12-Apr-05 1:59

Thanks for the code you supplied.
I tried the one given by Joel Holdsworth,and it works perfectly well.
Here's the final version.
void CMyBitsDlg::ConvertLLtoBin()
{
LONGLONG value = 0xFFFFFFFFFFFFFFFF;//16 F
TCHAR mystring[sizeof(LONGLONG)*8 + 1];
for(int i = 0; i < sizeof(LONGLONG)*8; i++)
mystring[i] = ((value >> (sizeof(LONGLONG)*8 - i - 1)) & 1) ? _T('1') : _T('0');
mystring[sizeof(LONGLONG)*8] = 0;
AfxMessageBox(mystring);
}
The result is a 64 1's.

Re: LONGLONG

Joel Holdsworth12-Apr-05 0:26

Joel Holdsworth

12-Apr-05 0:26

I'm so sorry to mess you around fardak! I'm really not thinking properly today! The problem is that sizeof(LONGLONG) is in bytes not bits. Change every reference to sizeof(LONGLONG) to sizeof(LONGLONG)*8, and everything should work out!

Joel Holdsworth

Wanna give me a job this summer?
Check out my online CV and project history[^]

b+ tree implementation in c

chaitanyajonnalagadda11-Apr-05 21:18

chaitanyajonnalagadda

11-Apr-05 21:18

i tried to implement but i couldn't .i hope anyone could help me before 20 of this month

Automated building

JensB11-Apr-05 20:53

JensB

11-Apr-05 20:53

Hi,

I have alot of MFC and C++ Console applications & static library's.
I build all applications on Windows OS & main applications (console) on Linux (gcc gmake).

Which program do you guys advise to use to automated building so I can do building easily on Win & Linux? ant? Scons?
I realise this is not a general C++ question, but since you guys alsoo waste a lot of time building apps maybe anyone could give me some tips ..

Greetings,
Jens

Re: Automated building

CP Visitor12-Apr-05 4:47

CP Visitor

12-Apr-05 4:47

JensB wrote:
Which program do you guys advise to use to automated building so I can do building easily on Win & Linux? ant? Scons?

gmake[^] is available for Linux and Windows Smile | :)

Help me about DSP

vtalau11-Apr-05 20:35

vtalau

11-Apr-05 20:35

I'm trying to finish a report on DSP (digital signal processing) technique increasing effect of sound. However, I can't find any documents teaching about this technique on almost the webpages. I hope your help...You can give me a link to a webpage, a ebook ,and anything else about the technique...thanks so much <vtalau@yahoo.com>

Re: Help me about DSP

namaskaaram11-Apr-05 21:15

namaskaaram

11-Apr-05 21:15

try out thiz sire....very useful.....good forum for dsp stuff!!!!!
http://www.musicdsp.com/[^]

cheerz..... Big Grin | :-D

"faith, hope, love remain, these three.....; but the greatest of these is love" -1 Corinthians 13:13

Console application on system tray

jakas11-Apr-05 20:19

jakas

11-Apr-05 20:19

Hello,

I have developed Console based application . Now I want some code which will minimize the application to system tray and the process is running in the background.

I saw many codes but all are available for MFC or dialog based application .

can any one give me guidence or send me the code for the same.

Thanks in advacnce,
Rajat

Re: Console application on system tray

Cedric Moonen11-Apr-05 21:09

Cedric Moonen

11-Apr-05 21:09

In fact you don't want your console to be visible is it ?

See the : FAQ[^]

Re: Console application on system tray

jakas11-Apr-05 23:05

jakas

11-Apr-05 23:05

ya,

Basically its a continuously running process so i want it to minimize to system tray .

can any one please tell me how to get handle for the console window in vc++.

Thanks

Re: Console application on system tray

Cedric Moonen12-Apr-05 0:17

Cedric Moonen

12-Apr-05 0:17

I don't think this would be possible with a standard console application. I think (but I'm not sure) this is totally incopatible with the windows API and so, the taskbar is purely windows specific. I might be wrong but that sounds logical to me...
If you really need to do this, you will need to change your application and move it to a Win32 (or MFC) application

Log File...

mpallavi11-Apr-05 20:15

mpallavi

11-Apr-05 20:15

Hi..
I need to maintain a log file which will contain the time i started a playback.. and the time it ended.. What i have done is:
-> Get the current time and write it to log..
-> The code that takes care of sound playback..
-> Get the current time and write it to log..
The problem is .. both these times are same.. (the playback goes on for more than 10 secs..)
Can anyone help me out..
regards
pallavi

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