Re: [linuxsh-dev] The problem of puts() function

[Stuart M. <Stu...@st...>]

Peter

It's working fine for me, using the RPMs from SourceForge and a test8
kernel.

I suspect it is a problem with the C library you are using. Assuming 
you are using a reasonably modern C library implementation, when output
is being sent to a terminal, it will normally be line buffered, so will
be output when the puts() is called. However when you are redirecting
output to a file, it will be fully buffered, so is normally output when
the program exits (you won't be generating enough data to fill the
buffer in these examples).

I'm not sure what to suggest however. You could try explicitly calling
fflush(stdout) to make sure this is what's happening. Also try using
exit() to see if that works.

I think we'd need to know which C library you are using to make any
more progress.

Stuart

pe...@co... writes:
> Hello folks,
> 
> I got the problem about puts() function.
> 
> ex: test.c
> 
> #include <stdio.h>
> main(){
> 	puts("Hello World\n");
> }
> 
> in x86 platform:
> 
> debian:/tmp# gcc -o test test.c
> debian:/tmp# ./test
> Hello World
> debian:/tmp# ./test > output
> debian:/tmp# cat output
> Hello World
> 
> 
> in SuperH platform:
> 
> debian:/tmp# gcc -o test test.c 
> debian:/tmp# ./test
> Hello World
> debian:/tmp# ./test > output
> debian:/tmp# cat output
> debian:/tmp# (No output)
> 
> I found all the program that use the puts() will cause the some problem in
> shell script. The program 'basename' uses puts() to output the basename of
> input string.  Below is a piece of install-sh shell script.  You will find 
> the result in '$dstfile' is emply below:
> 
>   dst=/usr/bin/cmp
>   dstfile=`basename $dst`
> 
> If you have program 'basename', please test it. Thanks.
> 
> 
> - PhantomCat
> 
> -- 
> Peter Hung                                      * Email : pe...@co...
> Engineer @ Coventive Technologies               * Phone : 886-919-616-535
> _______________________________________________
> linuxsh-dev mailing list
> lin...@li...
> http://lists.sourceforge.net/mailman/listinfo/linuxsh-dev


-- 
Stuart Menefy                                          st...@in...
SGS Thomson Microelectronics Ltd, Bristol        or st...@br...
-------------------------------------------------------------------------
Now I can't not speak for Inmos, I don't speak for SGS Thomson either....