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MFC r236288:
authoreadler <eadler@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Wed, 13 Jun 2012 03:30:24 +0000 (03:30 +0000)
committereadler <eadler@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Wed, 13 Jun 2012 03:30:24 +0000 (03:30 +0000)
commit38e6cad2391321eaee10daf415441c5bb9d1d470
treea4e775b523f1f0002e74294b8693c0488ecb55f2
parent18f1112273534502da51fb532082721f76758c1a
MFC r236288:
Only set _w to 0 when the file stream is not currently reading. Without this fflush may fail to write data in the buffer.

PR: kern/137819
Approved by: cperciva (implicit)

git-svn-id: svn://svn.freebsd.org/base/stable/8@236982 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
lib/libc/stdio/fpurge.c