[Feature][ZXW-33]merge ZXW 0428 version

Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/stdio-common/tst-ferror.c b/ap/libc/glibc/glibc-2.23/stdio-common/tst-ferror.c
new file mode 100644
index 0000000..69592df
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/stdio-common/tst-ferror.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+  char buf[100];
+  int result = 0;
+
+  if (ferror (stdin) != 0)
+    {
+      fputs ("error bit set for stdin at startup\n", stdout);
+      result = 1;
+    }
+  if (fgets (buf, sizeof buf, stdin) != buf)
+    {
+      fputs ("fgets with existing input has problem\n", stdout);
+      result = 1;
+    }
+  if (ferror (stdin) != 0)
+    {
+      fputs ("error bit set for stdin after setup\n", stdout);
+      result = 1;
+    }
+  if (fputc ('a', stdin) != EOF)
+    {
+      fputs ("fputc to stdin does not terminate with an error\n", stdout);
+      result = 1;
+    }
+  if (ferror (stdin) == 0)
+    {
+      fputs ("error bit not set for stdin after fputc\n", stdout);
+      result = 1;
+    }
+  clearerr (stdin);
+  if (ferror (stdin) != 0)
+    {
+      fputs ("error bit set for stdin after clearerr\n", stdout);
+      result = 1;
+    }
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"