Re: Getting the file name from a FILE *

jacob navia skrev:
> Tor Rustad wrote:
>> Now, notice that the output files are closed, then deleted, so your 
>> _fname() will not help much. I assume you free the file name on 
>> fclose(), right?
>>
> 
> name = strdup(fname(fp));
> fclose(fp);
> delete(name);
> free(name);

That add another malloc + free call, and require extra coding.


>> Finally, this GW run on Solaris... so using _fname() will break the 
>> program.
>>
> 
> Names beginning with underscore are reserved for the implementation.

Yes, and it do remind users of a compiler _not_ to use such functions.

>> OTOH, if using lcc-win, program will be bloated by 4x extra malloc's, 
>> 4x extra free's, and more memory usage.... for no gain at all.
>>
> 
> Why 4?
> 
> Just one

Hmm..why one?

In this case, it was 4 files to open, and 4 files to close. Do you 
optimize away these malloc/free's, for FILE that _fname() isn't used?

Some programs open and close a logfile on every write, not that this 
matter much these days, as the world get more and more IO bound.

-- 
Tor <bwzcab@[EMAIL PROTECTED]
 | tr i-za-h a-z>