[OT] gcc-warning: more info

[Daniel Reuter <reuter@Uni-Hohenheim.DE>]

Hello there, 

Thanks to all, who responded up to now. I think I'll give some more
information, as I still don't understand, why the warning 
main.c:158: assignment makes pointer from integer without a cast
is generated in my case:

I have the following (among some other function and structure 
declarations) in my program-header-file 'bet.h':

	#include <stdlib.h>
	#include <stdio.h>

	struct provided_data{
		double sample_weight;
		struct datapoint *ppovolads;
		int value_count;
	};

	struct provided_data *read_data(char *);


This function is in file 'scanner.c' and does the following:

	#include "bet.h"

	struct provided_data *read_data(char *input_file_name)
	{
		struct provided_data *prov_data_buffer;
		
		Read in some data and put them into structure provided_data.
		Then return pointer to structure provided data using the
		following statement:
		
		return(prov_data_buffer);
	}


In file main.c I have the following:

	#include "bet.h"

	int main(int argc, char **argv)
	{
		some code that reads commandline opts and so on.
		
		Here I define input_data:
		struct provided_data *input_data;
		
		Now call read_data:
--->		input_data=read_data(input_file_name);
	}

line marked with ---> is the line, the compiler complains about.
I don't quite understand this, because I never declared function read_data
to return an int. Is something wrong with my function declaration?
Regards,
Daniel