From 3ffa88d3e16e7564ff81bf3650b5afa113caac97 Mon Sep 17 00:00:00 2001 From: Martin Baute Date: Thu, 17 Mar 2016 21:10:52 +0100 Subject: [PATCH] Fixed clearerr test driver. --- functions/stdio/clearerr.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/functions/stdio/clearerr.c b/functions/stdio/clearerr.c index 61461c9..ca22b03 100644 --- a/functions/stdio/clearerr.c +++ b/functions/stdio/clearerr.c @@ -25,20 +25,21 @@ int main( void ) /* Flags should be clear */ TESTCASE( ! ferror( fh ) ); TESTCASE( ! feof( fh ) ); - /* Reading from input stream - should provoke error */ - /* FIXME: Apparently glibc disagrees on this assumption. How to provoke error on glibc? */ + /* Reading from empty stream - should provoke EOF */ + rewind( fh ); TESTCASE( fgetc( fh ) == EOF ); - TESTCASE( ferror( fh ) ); - TESTCASE( ! feof( fh ) ); + TESTCASE( ! ferror( fh ) ); + TESTCASE( feof( fh ) ); /* clearerr() should clear flags */ clearerr( fh ); TESTCASE( ! ferror( fh ) ); TESTCASE( ! feof( fh ) ); - /* Reading from empty stream - should provoke EOF */ - rewind( fh ); + /* reopen() the file write-only */ + TESTCASE( ( fh = freopen( NULL, "w", fh ) ) != NULL ); + /* Reading from write-only stream - should provoke error */ TESTCASE( fgetc( fh ) == EOF ); - TESTCASE( ! ferror( fh ) ); - TESTCASE( feof( fh ) ); + TESTCASE( ferror( fh ) ); + TESTCASE( ! feof( fh ) ); /* clearerr() should clear flags */ clearerr( fh ); TESTCASE( ! ferror( fh ) ); -- 2.40.0