[solved](.cpp)"Hello world" in n900 (getting error) plz guide me. - maemo.org

nicholes | # 1 | 2011-06-15, 16:20 | Report

Here i have done a few things on my N900 from

http://ossguy.com/?p=475

to run .cpp files

and when i try to run this using g++ it shows error

here is my programme

# include <stdio.h>
# include <conio.h>
int main (void)
{
printf ("hlloe wolrd");
getch();

}

UPDATE: Thanks to all of you guys i managed to run and also modify .cpp files now (i am using filebox along with the leafpad to edit .cpp)

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Last edited by nicholes; 2011-06-26 at 16:01.

Captwheeto | # 2 | 2011-06-15, 16:27 | Report

I've never touched C++ but I have done a little C.
Is there any reason why you're using them headers?
You should only need stdio, like so

#include <stdio.h>

int main(void)
{
printf("hello, world\n");
return 0;
}

unless you were planning to expand. Were you trying to get stdin from the user? I'm Perl/Haskell guy. Sorry I can't be of more help

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attila77 | # 3 | 2011-06-15, 16:30 | Report

Originally Posted by nicholes View Post

Here i have done a few things on my N900 from

http://ossguy.com/?p=475

to run .cpp files

and when i try to run this using g++ it shows error

here is my programme

# include <stdio.h>
# include <conio.h>
int main (void)
{
printf ("hlloe wolrd");
getch();

}

Any particular reason for not using the QtSDK but go for on-device compile ?

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nicholes | # 4 | 2011-06-15, 16:36 | Report

Originally Posted by Captwheeto View Post

I've never touched C++ but I have done a little C.
Is there any reason why you're using them headers?
You should only need stdio, like so

#include <stdio.h>

int main(void)
{
printf("hello, world\n");
return 0;
}

unless you were planning to expand. Were you trying to get stdin from the user? I'm Perl/Haskell guy. Sorry I can't be of more help

i use your methode (using my pc dev c++) but it does nothig a cmd flashes and gone nothing happand

also i am using <conio.h> header file to use getch() for "heelo wolrd" to remain on the screen

nicholes | # 5 | 2011-06-15, 16:39 | Report

Originally Posted by attila77 View Post

Any particular reason for not using the QtSDK but go for on-device compile ?

i am learning in my institute and there is no qtsdk but a very older (turboc++ installed in a pc)

i wont to show them all THE POWER OF N900!

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SubCore | # 6 | 2011-06-15, 16:50 | Report

you need to tell g++ where to look for conio.h, usually via the -L switch.

but google tells me that conio.h is a very old msdos library, i doubt it'll work in this environment. try something like "cin.get()" (and #include <iostream>)

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StefanL | # 7 | 2011-06-15, 16:55 | Report

Originally Posted by nicholes View Post

Here i have done a few things on my N900 from

http://ossguy.com/?p=475

to run .cpp files

and when i try to run this using g++ it shows error

here is my programme

# include <stdio.h>
# include <conio.h>
int main (void)
{
printf ("hlloe wolrd");
getch();

}

Your problem is using a non-standard header file and function (google getch()

), this was invented for DOS and only supported by certain compilers. Try using one of the standard input functions and get rid of conio.h if you want to compile it on the N900.

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nicholes | # 8 | 2011-06-15, 16:56 | Report

Originally Posted by SubCore View Post

you need to tell g++ where to look for conio.h, usually via the -L switch.

but google tells me that conio.h is a very old msdos library, i doubt it'll work in this environment. try something like "cin.get()" (and #include <iostream>)

i know but my my programme don't work without conio.h (a cmd flashes only)any other method to do this (i am new in coding)

nicholes | # 9 | 2011-06-15, 16:58 | Report

Originally Posted by StefanL View Post

Your problem is using a non-standard header file and function (google getch()

), this was invented for DOS and only supported by certain compilers. Try using one of the standard input functions and get rid of conio.h if you want to compile it on the N900.

can you give an example here for me how to get rid of conio.h and getch()

?

StefanL | # 10 | 2011-06-15, 17:01 | Report

Originally Posted by nicholes View Post

can you give an example here for me how to get rid of conio.h and getch()

?

Dude, I am not a C programmer, but using googles for getch pops a number of websites with the answer. Sorry can't help you any more (is like the horse and the water thingy

).

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