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Re: [PATCH] Also flush write when reading large amount of data (BZ #18659)
- From: Andreas Schwab <schwab at linux-m68k dot org>
- To: "Siddhesh Poyarekar" <siddhesh at redhat dot com>
- Cc: libc-alpha at sourceware dot org, carlos at redhat dot com
- Date: Sat, 11 Jul 2015 10:17:55 +0200
- Subject: Re: [PATCH] Also flush write when reading large amount of data (BZ #18659)
- Authentication-results: sourceware.org; auth=none
- References: <1436601380-12456-1-git-send-email-siddhesh at redhat dot com>
"Siddhesh Poyarekar" <siddhesh@redhat.com> writes:
> + fwrite(data, 1, strlen (data), f);
> +
> + n = fread(foo, 1, BUF_LEN, f);
That testcase is INVALID.
http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html
However, the application shall ensure that output is not directly
followed by input without an intervening call to fflush() or to a file
positioning function (fseek(), fsetpos(), or rewind()),
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
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