help regarding linking

[selvam]

Hello Radha Krishna Ganti,

          I beleive by including a prototype for the function to_print in
file1.c should solve your problem.

          Best Regards,
          Selva.

----- Original Message -----
From: <rganti@nd.edu>
To: <gcc-help@gcc.gnu.org>
Sent: Saturday, November 27, 2004 10:44 AM
Subject: help regarding linking


>
> Hi,
>       I am a newbie at using gcc.  I wanted to write functions and the
main file
> in different files
>
>  I am using the following to compile
> gcc -c file1.c
> gcc  -c file2.c
> gcc file1.o file2.o
> a.out
> 2.00000 1.90000
>
> I am not able to understand why that is the output. But if write the
> function to_print in file1.c and compile, it works normally.
> If I replace all floats  in both files by double it works
>
> What is happening? Am I compiling them wrong.
>
>
> /*----------- file1.c-------------*/
> #include<stdio.h>
> #include<stdlib.h>
>
> int main()
> {
>     float a,b;
>     a=1.2;
>     b=1.3;
>     to_print(a,b);
>     return 0;
> }
> ---------------file2.c-------------
> #include<stdio.h>
> void to_print(float a, float b)
> {
>     printf("%f , %f \n", a,b);
>
> }
>
>
>
> -regards
> Radha Krishna Ganti
>
> --
> Radha Krishna Ganti
> EE-Grad Student
> Univ. Of Notre Dame
>
>