Re: [Dev-C++] Problems with compiling

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

It isn't enough to include andy standard header files in one of your c
files.

All c files that contains references to functions from the standard
library, or functions from other c files must include the relevant header
files.

/pwm

On Sun, 20 May 2007, Jan Mura wrote:

> Hello,
>
> I would like to ask something about compiling of files under gcc.exe
> (Dev-Cpp on Win XP).
> Iam trying to compile two files which should produce one executable file.
> One of the file is main.c in which I include all
> standard headers and header file for main and the other source file.
>
> And under console I am trying to do something like:
>
> gcc.exe main.c bet_list.c -o ruleta.exe
>
> And the output is like:
> bet_list.c: In function `print_list':
> bet_list.c:9: error: `NULL' undeclared (first use in this function)
> bet_list.c:9: error: (Each undeclared identifier is reported only once
> bet_list.c:9: error: for each function it appears in.)
> bet_list.c: In function `empty_list':
> bet_list.c:30: error: `NULL' undeclared (first use in this function)
> bet_list.c: In function `in_list':
> bet_list.c:77: error: `NULL' undeclared (first use in this
> ...
> and so on for every NULL in bet_list.c
>
> If I compile just bet_list.c and I include the main() function in this file
> together with including the standard headers, the compilation is without
> errors.
> I think the NULL is declared in stdlib.h which I include of course.
>
> Thank you for your hints.
>
> Jan Mura
> jan...@vo...
>
>
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