Re: implementation of 2-dimensional array in bash - kind request
Hello Darius, On Sat, Jul 5, 2008 at 7:54 PM, Darius Jack [EMAIL PROTECTED] wrote: and have 2D array inmterpreted as one row. so calculating array2D ( ) i-th j-th element as i + (j-1) x row length I agree with Igor what using bash or even better a POSIX shell would be a little insane. Still Dave Taylor have a serries on linuxjounral about shell programming (creating a card game/arrat manipulation) see http://www.linuxjournal.com/article/8704 I think you might find it useful. greetings, P.S. can you stop sending the Send instant messages to your online friends http://uk.messenger.yahoo.com; in every and each mail? ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Wrting to a text file in N800 /media/mmc1
On Sat, Jul 5, 2008 at 11:09 PM, nisha jain [EMAIL PROTECTED] wrote:
Hi All,
I just checked in N800 the following program for writing into a file which
doesn't work Any clues what is going wrong? I neither get any error not
it is
creating a file and writing into it.
#includestdio.h
void main()
{
FILE *Gfile;
if ((Gfile = fopen(/media/mmc1/test.txt, wt+)) == NULL)
{
printf(Error in file creation);
}
if(Gfile)
fprintf(Gfile,%02x,0x10);
fclose(Gfile);
}
Hi Nisha
try printing the error using perror
add include errno.h
and replace the printf with perror(fopen).
The t in the fopen is not documented in my man pages what is it used for?
Do you know what happens when you call fclose on a NULL handle?
Also remember you might be writing to a FAT file system that will not
support setting all file attributes.
Regards,
Nisha
On Sat, Jul 5, 2008 at 5:34 PM, nisha jain [EMAIL PROTECTED] wrote:
Hi Gray,
I checked the file pointer if it is NULL I am printing error message and
returning too.
Also i am checking while writing into a file that file pointer is not
NULL.
I have tested it on mameo (ARMEL) enviornment and it is working absolutely
fine
I am not able to understand while after porting to N800 it doesn't show up
any file created on flash
at least it should create an empty file..Does there is some
restriciton in writing into flash?
Regards,
Nisha
On Sat, Jul 5, 2008 at 2:29 PM, gary liquid [EMAIL PROTECTED] wrote:
nisha,
check you have included appended the filename on the end of the path in
your adjusted program.
Check the return values of all functions called and do not assume success
for anything.
Most importantly, put printf(fn msg/n); calls around your program at
relevant points.
The printfs will help you debug by showing you where your software got to
and optionally whatever additional information you want to display.
Gary (lcuk on maemo)
On Sat, Jul 5, 2008 at 6:54 PM, nisha jain [EMAIL PROTECTED] wrote:
hi All,
I wrote a program which is collecting some data and creating text file
to write into.
I am successfully able to run and execute it in the VmWare maemo
enviornment without any problem.
When i deployed it into N800 I am getting segmentation fault this
application I checked in ARMEL compiled
mode on VmWare... I am not sure how to debug it as it is working fine in
the Maemo enviornment but crashes
on the actual N800 device... Only change is the file created in
using like fopen (filename, wt);
in the Maemo and in case of N800 fope(/media/mmc1, wt)
I tired checking if file gets created to /media/mmc1 or not but it
doesn't get created their at all.
Let me know if some one has idea?
Regards,
Nisha
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Re: implementation of 2-dimensional array in bash - kind request
C is a good solution. So is Perl, which comes on OS 2008. So is Python. Perl lets you construct nested lists, which gives you the equivalent in capability to multi-dimensional arrays. Python gives similar constructs. There is no reason IMHO to be writing shell scripts of any kind on a system where Perl and Python are available. Shell programming is just weak for many reasons including lack of data structure capabilities and should be avoided whenever possible. I say this as someone who has accumulated years of shell programming experience in a professional software shop as well as other languages. The strongest of the shell programming languages, namely bash and ksh, have this problem. Perl and Python are practical for exactly the reason that they are good replacements for these shell languages. -Will Kees Jongenburger wrote: Hello Darius, On Sat, Jul 5, 2008 at 7:54 PM, Darius Jack [EMAIL PROTECTED] wrote: and have 2D array inmterpreted as one row. so calculating array2D ( ) i-th j-th element as i + (j-1) x row length I agree with Igor what using bash or even better a POSIX shell would be a little insane. Still Dave Taylor have a serries on linuxjounral about shell programming (creating a card game/arrat manipulation) see http://www.linuxjournal.com/article/8704 I think you might find it useful. greetings, P.S. can you stop sending the Send instant messages to your online friends http://uk.messenger.yahoo.com; in every and each mail? ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: 770 info in wiki Re: Has maemo-pc-connectivity been substituted by USB Networking applet (in control panel)?
Hi, Neil Jerram wrote: But the rest is arbitrary. I see no need for separate pages, only clear section headings within the page. Long pages full of technical information (most of which is not useful to the reader) are intimidating, and give the impression of needing to be an expert to achieve the task at hand. It would be a return to the RTFM culture of the 90s when HOWTOs (which were great if you had a basic idea what you were talking about) were the pinacle of Linux documentation. I'd hoped we'd progressed beyond that. That is you making a choice for yourself. In the current discussion about wiki content, the debate is whether your proposal is best for the whole community, some of whom will have made different choices; not just for how you use your ITs. My proposal is not to exclude people, but to ensure that the main drag of the wiki stays clean, accessible, readable for a newbie, and represents the most recent information available. Information about what was the state of the art 3 years ago has its place, but it's not in the middle of what is the state of the art now. Cheers, Dave. -- maemo.org docsmaster Email: [EMAIL PROTECTED] Jabber: [EMAIL PROTECTED] ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: implementation of 2-dimensional array in bash - kind request
William Gordon Rutherdale wrote: C is a good solution. So is Perl, which comes on OS 2008. So is Python. Perl lets you construct nested lists, which gives you the equivalent in capability to multi-dimensional arrays. Python gives similar constructs. There is no reason IMHO to be writing shell scripts of any kind on a system where Perl and Python are available. Shell programming is just weak for many reasons including lack of data structure capabilities and should be avoided whenever possible. I say this as someone who has accumulated years of shell programming experience in a professional software shop as well as other languages. The strongest of the shell programming languages, namely bash and ksh, have this problem. Perl and Python are practical for exactly the reason that they are good replacements for these shell languages. -Will I agree with you here that perl and python are easier to do complex things with than bash or ksh, but I wanted to point out that python may be the better choice on the Nokia tablets. Perl is my favorite language, but the perl install on the tablets is missing a lot of the standard modules. For example, 'perl -e use English;' gives an error. python seems to be a more complete install and even includes gtk, so it's arguably the best choice of scripting language for the platform given what's preinstalled and in extras. Sincerely, Jason ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Re: Wrting to a text file in N800 /media/mmc1
Hi All, Thanks alot for all your comments and help It finally worked I am not sure cause of problem but I guess it is due the mini-usb cable issue when I copy through it and keep it plug in i guess memory card is always in read mode but i have to still dig into it.. I also did unlock of memory card and now it is working perfectly fine even with lock mode it worked... I am not sure what is the issue I will send once complete this checking... Thanks and Regards, Nisha On Sun, Jul 6, 2008 at 1:52 PM, Chris Dobbs [EMAIL PROTECTED] wrote: Should that not be fopen(path/filename, wt); i.e fopen(/media/mmc2/myfile.txt, wt); ? -Chris On 5 Jul 2008, at 19:54, nisha jain wrote: hi All, I wrote a program which is collecting some data and creating text file to write into. I am successfully able to run and execute it in the VmWare maemo enviornment without any problem. When i deployed it into N800 I am getting segmentation fault this application I checked in ARMEL compiled mode on VmWare... I am not sure how to debug it as it is working fine in the Maemo enviornment but crashes on the actual N800 device... Only change is the file created in using like fopen (filename, wt); in the Maemo and in case of N800 fope(/media/mmc1, wt) I tired checking if file gets created to /media/mmc1 or not but it doesn't get created their at all. Let me know if some one has idea? Regards, Nisha ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers ___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
Problem with SDL on Maemo
Hi, I wrote a maemo application which creates SDL window. But even after SDL_WM_SetCaption(), I don't get to see anything in title bar of the Xephyr window. If I run the same program outside scratchbox, I get that title on the window created. What could be the issue? Regards, Deepak DISCLAIMER: --- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any mail and attachments please check them for viruses and defect. ---___ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
