X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Fferror.c;h=0067bed48288d6be1598af124299af8b0bc5d3ba;hb=e1c526e9bad3f6e69391e94059096145390508d3;hp=b6f51ee6092ffe077edb769cca3dc0cb8f418492;hpb=13ee02fa27a739d9d602f801126eadcfbfeab8a8;p=pdclib

diff --git a/functions/stdio/ferror.c b/functions/stdio/ferror.c
index b6f51ee..0067bed 100644
--- a/functions/stdio/ferror.c
+++ b/functions/stdio/ferror.c
@@ -1,5 +1,3 @@
-/* $Id$ */
-
 /* ferror( FILE * )
 
    This file is part of the Public Domain C Library (PDCLib).
@@ -9,12 +7,21 @@
 #include <stdio.h>
 
 #ifndef REGTEST
+#include <_PDCLIB_io.h>
 
-int ferror( struct _PDCLIB_file_t * stream )
+int _PDCLIB_ferror_unlocked( FILE * stream )
 {
     return stream->status & _PDCLIB_ERRORFLAG;
 }
 
+int ferror( FILE * stream )
+{
+    _PDCLIB_flockfile( stream );
+    int error = _PDCLIB_ferror_unlocked( stream );
+    _PDCLIB_funlockfile( stream );
+    return error;
+}
+
 #endif
 
 #ifdef TEST
@@ -22,8 +29,9 @@ int ferror( struct _PDCLIB_file_t * stream )
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    /* Testing covered by clearerr(). */
     return TEST_RESULTS;
 }
 
 #endif
+