Re: C code... file reading(twice)... strange problem!

At 2005-03-19 05:10:42 -0800, rohitsz2-/[email protected] wrote:
>
> long i,*val;
> ...
> 	for(i=0;i<LT;i++)
> 	{
> 		val=&i;
> 		fwrite(&val,sizeof(long),1,fs);
                       ^^^^
You should pass just "val" to fwrite here.

> ...
> 		fread(&val,sizeof(long),1,fs);
                      ^^^^
Similarly, you want just "val" here. (I note, however, that you're
overwriting your loop counter; and it works only because the value
you read from the file is the value of the loop counter anyway.)

> ...
> long* getRandomNumArray(long n)
> {
> 	long *base,*ptr,*val;
> ...
> 			for(i=0;i<n;i++)
> 			{/* fread reads same value every time!*/
> 				fread(&val,sizeof(long),1,fp);
                                      ^^^^
First, you want just "val" here. Second, val is uninitialised here, so
this code just won't work. Try making val actually point to something.

-- ams