X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstdio%2Fferror.c;h=43fad2d8f67031fde75c3cb2713a48f2a743b4fa;hp=7006510d364bd59be8ecd57beb59f32db51ebfe3;hb=da0f3f353d417fed71f358a48d5d5394145e460d;hpb=0a5395faab237ba9008352b0f4bee9659bbd3d5f

diff --git a/functions/stdio/ferror.c b/functions/stdio/ferror.c
index 7006510..43fad2d 100644
--- a/functions/stdio/ferror.c
+++ b/functions/stdio/ferror.c
@@ -1,14 +1,37 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
+/* ferror( FILE * )
 
-int ferror( FILE * stream ) { /* TODO */ };
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <stdio.h>
 
-/* PDPC code - unreviewed
+#ifndef REGTEST
+#include "_PDCLIB_io.h"
+
+int _PDCLIB_ferror_unlocked( FILE * stream )
 {
-    return (stream->errorInd);
+    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
+#include "_PDCLIB_test.h"
+
+int main( void )
+{
+    /* Testing covered by clearerr(). */
+    return TEST_RESULTS;
+}
+
+#endif
+