On Wednesday, August 24, 2005 at 13:20, Bruno Haible wrote:
> > Here's what getdelim in Gnulib returns:
> > >=0, errno undefined, feof (getc returned EOF, reached end of file)
> > >=0, errno!=0, ferror (getc returned EOF, read failed)
>
> Actually I think the glibc doc means that -1 is returned if EOF or read
> failure occurs before the first character is read. If it occurs after
> some non-empty string is already read, this non-empty string is returned.
Well, the current Gnulib implementation doesn't behave that way.
It will return 0 if the first call to getc fails (for whatever reason -
error or EOF). AFAIK, the correct way to test getline/getdelim for errors
in the current implementation is:
errno = 0;
if (getline(..., fh) <= 0)
if (ferror(fh) || errno != 0) {
perror("getline");
} else if (feof(fh)) {
/* handle EOF */
} else {
errno = ENOMEM;
perror("getline");
}
}
I believe the GNU libc documentation needs to be fixed.
Regards,
Oskar Liljeblad ([EMAIL PROTECTED])
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