X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Fclearerr.c;h=922f6ab9d239e18cbf5eea9d959d0102c10d9f54;hb=0d54a75af25ca44411e7c4190cc2a93a390e61a2;hp=6d80c8aeb381639c62b9fbf0a4194ff68b083bc7;hpb=a6dd99e5c0b3af81082d24751218c21f7f3e7443;p=pdclib.old diff --git a/functions/stdio/clearerr.c b/functions/stdio/clearerr.c index 6d80c8a..922f6ab 100644 --- a/functions/stdio/clearerr.c +++ b/functions/stdio/clearerr.c @@ -22,8 +22,33 @@ void clearerr( struct _PDCLIB_file_t * stream ) int main( void ) { - TESTCASE( NO_TESTDRIVER ); + FILE * fh; + remove( "testfile" ); + TESTCASE( ( fh = fopen( "testfile", "w+" ) ) != NULL ); + /* Flags should be clear */ + TESTCASE( ! ferror( fh ) ); + TESTCASE( ! feof( fh ) ); + /* Reading from input stream - should provoke error */ + TESTCASE( fgetc( fh ) == EOF ); + 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 ); + TESTCASE( fgetc( fh ) == EOF ); + TESTCASE( ! ferror( fh ) ); + TESTCASE( feof( fh ) ); + /* clearerr() should clear flags */ + clearerr( fh ); + TESTCASE( ! ferror( fh ) ); + TESTCASE( ! feof( fh ) ); + TESTCASE( fclose( fh ) == 0 ); + remove( "testfile" ); return TEST_RESULTS; } #endif +