dev-cpp-users

[Dev-C++] Dev-cpp support for getline

[Dave S. <da...@da...>]

Hi

I am in the process of coming to grips with C and eventually C++ and 
working through various tutorials, currently the GNU C Programming 
Tutorial by Mark Burgess. I am running Dev-cpp 4.9.9.0 on Windows 
98SE.

The tutorial stresses the use of getline, getdelim, and other 
functions introduced with GNU C instead of the deprecated scanf etc.

But I can't seem to get getline to work with dev-cpp. If I try and 
compile the program below, which is from the tutorial, I get a linker 
error 'undefined reference to 'getline' '.

I have tried searching this mailing list and the forums and cannot 
find a solution, apart from getting the impression that others seem 
to be able to use it with no problem.

Do I need to download an updated <stdio.h> or other library?

Thanks
Dave Sergeant

Example program:

#include <stdio.h>

int main()
{
  int bytes_read;
  int nbytes = 100;
  char *my_string;

  puts ("Please enter a line of text.");

  /* These 2 lines are the heart of the program. */
  my_string = (char *) malloc (nbytes + 1);
  bytes_read = getline (&my_string, &nbytes, stdin);

  if (bytes_read == -1)
    {
      puts ("ERROR!");
    }
  else
    {
      puts ("You typed:");
      puts (my_string);
    }

  return 0;
}
http://www.davesergeant.com

Re: [Dev-C++] Dev-cpp support for getline

[Per W. <pw...@ia...>]

Sorry, no getline() with the C libraries for MinGW.

However, before starting to use gnu-specific extensions, I woule really
recommend you to think twice. If you are working on gnu tools, it might be
a good decision, but for most other C programming, I think it is better to
rely on standardized functions.

/Per W

On Mon, 11 Oct 2004, Dave Sergeant wrote:

> Hi
>
> I am in the process of coming to grips with C and eventually C++ and
> working through various tutorials, currently the GNU C Programming
> Tutorial by Mark Burgess. I am running Dev-cpp 4.9.9.0 on Windows
> 98SE.
>
> The tutorial stresses the use of getline, getdelim, and other
> functions introduced with GNU C instead of the deprecated scanf etc.
>
> But I can't seem to get getline to work with dev-cpp. If I try and
> compile the program below, which is from the tutorial, I get a linker
> error 'undefined reference to 'getline' '.
>
> I have tried searching this mailing list and the forums and cannot
> find a solution, apart from getting the impression that others seem
> to be able to use it with no problem.
>
> Do I need to download an updated <stdio.h> or other library?
>
> Thanks
> Dave Sergeant
>
> Example program:
>
> #include <stdio.h>
>
> int main()
> {
>   int bytes_read;
>   int nbytes = 100;
>   char *my_string;
>
>   puts ("Please enter a line of text.");
>
>   /* These 2 lines are the heart of the program. */
>   my_string = (char *) malloc (nbytes + 1);
>   bytes_read = getline (&my_string, &nbytes, stdin);
>
>   if (bytes_read == -1)
>     {
>       puts ("ERROR!");
>     }
>   else
>     {
>       puts ("You typed:");
>       puts (my_string);
>     }
>
>   return 0;
> }
> http://www.davesergeant.com
>
>
>
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Re: [Dev-C++] Dev-cpp support for getline

[Michael C U. <mu...@cb...>]

Dave,

getline() does not exist in the mingw32 port of GCC (it is a GNU specific
extension that is not part of ISO C).

Your best bet is fgets() if you want to make sure that you cannot cause a
buffer overflow when reading in data.

On Mon, 11 Oct 2004, Dave Sergeant wrote:

> Hi
>
> I am in the process of coming to grips with C and eventually C++ and
> working through various tutorials, currently the GNU C Programming
> Tutorial by Mark Burgess. I am running Dev-cpp 4.9.9.0 on Windows
> 98SE.
>
> The tutorial stresses the use of getline, getdelim, and other
> functions introduced with GNU C instead of the deprecated scanf etc.
>
> But I can't seem to get getline to work with dev-cpp. If I try and
> compile the program below, which is from the tutorial, I get a linker
> error 'undefined reference to 'getline' '.
>
> I have tried searching this mailing list and the forums and cannot
> find a solution, apart from getting the impression that others seem
> to be able to use it with no problem.
>
> Do I need to download an updated <stdio.h> or other library?
>
> Thanks
> Dave Sergeant
>
> Example program:
>
> #include <stdio.h>
>
> int main()
> {
>   int bytes_read;
>   int nbytes = 100;
>   char *my_string;
>
>   puts ("Please enter a line of text.");
>
>   /* These 2 lines are the heart of the program. */
>   my_string = (char *) malloc (nbytes + 1);
>   bytes_read = getline (&my_string, &nbytes, stdin);
>
>   if (bytes_read == -1)
>     {
>       puts ("ERROR!");
>     }
>   else
>     {
>       puts ("You typed:");
>       puts (my_string);
>     }
>
>   return 0;
> }
> http://www.davesergeant.com
>
>
>
> -------------------------------------------------------
> This SF.net email is sponsored by: IT Product Guide on ITManagersJournal
> Use IT products in your business? Tell us what you think of them. Give us
> Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more
> http://productguide.itmanagersjournal.com/guidepromo.tmpl
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>

Re: [Dev-C++] Dev-cpp support for getline

[Dave S. <da...@da...>]

Many thanks to Per and others for their quick relies. Back to the 
tutorials...

Dave Sergeant

On 12 Oct 2004 at 0:11, Per Westermark wrote:

> Sorry, no getline() with the C libraries for MinGW.
> 
> However, before starting to use gnu-specific extensions, I woule
> really recommend you to think twice. If you are working on gnu tools,
> it might be a good decision, but for most other C programming, I think
> it is better to rely on standardized functions.
> 
> /Per W
> 
> On Mon, 11 Oct 2004, Dave Sergeant wrote:
> 
> > Hi
> >
> > I am in the process of coming to grips with C and eventually C++ and
> > working through various tutorials, currently the GNU C Programming
> > Tutorial by Mark Burgess. I am running Dev-cpp 4.9.9.0 on Windows
> > 98SE.
> >
> > The tutorial stresses the use of getline, getdelim, and other
> > functions introduced with GNU C instead of the deprecated scanf etc.
> >
> > But I can't seem to get getline to work with dev-cpp. If I try and
> > compile the program below, which is from the tutorial, I get a
> > linker error 'undefined reference to 'getline' '.
> >
> > I have tried searching this mailing list and the forums and cannot
> > find a solution, apart from getting the impression that others seem
> > to be able to use it with no problem.
> >
> > Do I need to download an updated <stdio.h> or other library?
> >
> > Thanks
> > Dave Sergeant

http://www.davesergeant.com