X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Fferror.c;h=07ecde7228774b237f6a5fbdbaa2ec8c93e973cc;hb=HEAD;hp=b6f51ee6092ffe077edb769cca3dc0cb8f418492;hpb=a6dd99e5c0b3af81082d24751218c21f7f3e7443;p=pdclib.old

diff --git a/functions/stdio/ferror.c b/functions/stdio/ferror.c
index b6f51ee..07ecde7 100644
--- a/functions/stdio/ferror.c
+++ b/functions/stdio/ferror.c
@@ -9,12 +9,21 @@
 #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 +31,9 @@ int ferror( struct _PDCLIB_file_t * stream )
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    /* Testing covered by clearerr(). */
     return TEST_RESULTS;
 }
 
 #endif
+