Dear bio-netters
I'll probably cross post to VMS group as well, but I was wondering
whether any of the VMS gurus knocking around this group could sort
this one out:
I am running a database searching program, which as I
scroll through the file I keep an ftell() index of sequence
positions to re-open the file for alignments... I close
the file fine but when I reopen it I get a NULL and the following
error message in errno...
"invalid default file name string address"
I've traced the point at which I become unable to open the file to
write file opening: the actual code is
(test_file is this database file.)
#ifdef DEBUG_FILE
log_full_error(INFO,0,"First test on %s - aln_file is %s",
test_file,aln_file);
if( (tmp=openfile(test_file,"R")) == NULL)
log_full_error(INFO,0,"Was a bummer!");
else {
log_full_error(INFO,0,"Openfile fine....");
fclose(tmp);
}
#endif
if ( (ofp=openfile(aln_file,"W") ) == NULL)
{
log_full_error(WARNING,0,"Unable to open alignment file %s, no
`
}
else {
#ifdef DEBUG_FILE
log_full_error(INFO,0,"Second test on %s",test_file);
if( (tmp=openfile(test_file,"R")) == NULL)
log_full_error(INFO,0,"Was a bummer!");
else {
log_full_error(INFO,0,"Openfile fine....");
fclose(tmp);
}
#endif
The first test_file open is fine, the second is not.
Now openfile is the interface between my code and fopen. The rules
in openfile =
if( *prot is capital letter) switch on error calling and call fopen with
smaller letter
call fopen first
if it is a read file
try to append two (on UNIX machines setenv) different strings to
the file so read files are looked for in a path
current directory
WISEPERSONALDIR
WISECONFIGDIR
Does anyone know what that error message means? Does anyone have an idea
about why it is not working on VMS (BTW - there is no problem on any
flavor of UNIX)
any pointers ( ;) - been programming in C for too long) very wellcome...
ewan birney
birney at molbiol.ox.ac.uk
