Re: Problem with 'fclose' function on GNU/Linux system

[Michael Vance]

On Tue, Nov 07, 2000 at 02:13:46PM -0200, André E. Gabriel da Silva wrote:

> cases, when it is closing the temporary files (with 'fclose'), it receives a
> signal of "segmentation fault" and do a core dump.
> 
>         Well, gdb says the error occurred inside the function "malloc"
> (chunk_free), file "malloc.c", line 3020. But the program didn't called
> malloc! It called 'fclose'! As I said, the program uses 2*nh files, and it

Which may free resources, thus call free() (note the 'chunk_free'),
which is defined in malloc.c.

You have memory corruption somewhere. You didn't include a required
header or the data file, so we can't even compile the program.

Get yourself a copy of a debug malloc library like dmalloc
(http://www.dmalloc.com), or use the internal debug malloc goodies
(export MALLOC_CHECK_=2, etc.).

m.

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