From a5b4689fd2be881e28c64cf998ebecb6386563a2 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sun, 29 Apr 2007 07:44:02 +0000
Subject: [PATCH] Oops, fix details and comments of last patch.

---
 tests/test-freading.c | 6 ++++--
 tests/test-fwriting.c | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/tests/test-freading.c b/tests/test-freading.c
index e51d7ab18..3d69c404e 100644
--- a/tests/test-freading.c
+++ b/tests/test-freading.c
@@ -73,6 +73,7 @@ main ()
      freading is only deterministic after input or output, but this
      test case should be portable even on open, after reposition, and
      at EOF.  */
+  /* First a scenario with only fgetc, fseek, fputc.  */
   fp = fopen (TESTFILE, "r+");
   if (fp == NULL)
     goto skip;
@@ -91,7 +92,7 @@ main ()
   if (fseek (fp, 0, SEEK_CUR) != 0)
     goto skip;
   /* freading (fp) is undefined here, but fwriting (fp) is false.  */
-  if (fputc ('z', fp) != 'z')
+  if (fputc ('x', fp) != 'x')
     goto skip;
   ASSERT (!freading (fp));
   if (fseek (fp, 0, SEEK_END))
@@ -105,6 +106,7 @@ main ()
      freading is only deterministic after input or output, but this
      test case should be portable even on open, after reposition, and
      at EOF.  */
+  /* Here a scenario that includes fflush.  */
   fp = fopen (TESTFILE, "r+");
   if (fp == NULL)
     goto skip;
@@ -120,7 +122,7 @@ main ()
   ASSERT (freading (fp));
   fflush (fp);
   /* freading (fp) is undefined here, but fwriting (fp) is false.  */
-  if (fgetc (fp) != 'a')
+  if (fgetc (fp) != 'x')
     goto skip;
   ASSERT (freading (fp));
   /* This fseek call is necessary when switching from reading to writing.
diff --git a/tests/test-fwriting.c b/tests/test-fwriting.c
index 00b6870b4..690a35f30 100644
--- a/tests/test-fwriting.c
+++ b/tests/test-fwriting.c
@@ -73,6 +73,7 @@ main ()
      fwriting is only deterministic after input or output, but this
      test case should be portable even on open, after reposition, and
      after fflush.  */
+  /* First a scenario with only fgetc, fseek, fputc.  */
   fp = fopen (TESTFILE, "r+");
   if (fp == NULL)
     goto skip;
@@ -91,7 +92,7 @@ main ()
   if (fseek (fp, 0, SEEK_CUR) != 0)
     goto skip;
   ASSERT (!fwriting (fp));
-  if (fputc ('z', fp) != 'z')
+  if (fputc ('x', fp) != 'x')
     goto skip;
   ASSERT (fwriting (fp));
   if (fseek (fp, 0, SEEK_END))
@@ -105,6 +106,7 @@ main ()
      fwriting is only deterministic after input or output, but this
      test case should be portable even on open, after reposition, and
      after fflush.  */
+  /* Here a scenario that includes fflush.  */
   fp = fopen (TESTFILE, "r+");
   if (fp == NULL)
     goto skip;
@@ -120,7 +122,7 @@ main ()
   ASSERT (!fwriting (fp));
   fflush (fp);
   ASSERT (!fwriting (fp));
-  if (fgetc (fp) != 'a')
+  if (fgetc (fp) != 'x')
     goto skip;
   ASSERT (!fwriting (fp));
   /* This fseek call is necessary when switching from reading to writing.
-- 
2.11.0