X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Fferror.c;h=394dcda2bc7dd07dee9cad93b61dfd95ec50ddd1;hb=e6d28b5afddd8b3e3564af2264aa8b705e711b67;hp=b6f51ee6092ffe077edb769cca3dc0cb8f418492;hpb=13ee02fa27a739d9d602f801126eadcfbfeab8a8;p=pdclib

diff --git a/functions/stdio/ferror.c b/functions/stdio/ferror.c
index b6f51ee..394dcda 100644
--- a/functions/stdio/ferror.c
+++ b/functions/stdio/ferror.c
@@ -10,11 +10,19 @@
 
 #ifndef REGTEST
 
-int ferror( struct _PDCLIB_file_t * stream )
+int ferror_unlocked( struct _PDCLIB_file_t * stream )
 {
     return stream->status & _PDCLIB_ERRORFLAG;
 }
 
+int ferror( struct _PDCLIB_file_t * stream )
+{
+    flockfile( stream );
+    int error = ferror_unlocked( stream );
+    funlockfile( stream );
+    return error;
+}
+
 #endif
 
 #ifdef TEST
@@ -22,8 +30,9 @@ int ferror( struct _PDCLIB_file_t * stream )
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    /* Testing covered by clearerr(). */
     return TEST_RESULTS;
 }
 
 #endif
+