Add memrchr tests

diff --git a/ChangeLog b/ChangeLog
index 1b7499c..a917b6e 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2011-10-13  Andreas Schwab  <schwab@redhat.com>
+
+       * string/stratcliff.c: Add memrchr tests.
+
 2011-10-12  Liubov Dmitrieva  <liubov.dmitrieva@gmail.com>
 
        * sysdeps/i386/i686/multiarch/Makefile (sysdep_routines): Add

diff --git a/string/stratcliff.c b/string/stratcliff.c
index 5165be2..5176409 100644 (file)
--- a/string/stratcliff.c
+++ b/string/stratcliff.c
@@ -1,5 +1,5 @@
 /* Test for string function add boundaries of usable memory.
-   Copyright (C) 1996,1997,1999-2003,2007,2009,2010
+   Copyright (C) 1996,1997,1999-2003,2007,2009,2010,2011
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@@ -240,7 +240,7 @@ do_test (void)
            }
        }
 
-      /* This function only exists for single-byte characters.  */
+      /* These functions only exist for single-byte characters.  */
 #ifndef WCSTEST
       /* rawmemchr test */
       for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
@@ -261,6 +261,37 @@ do_test (void)
              adr[middle] = L('T');
            }
        }
+
+      /* memrchr test */
+      for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
+       {
+         for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle)
+           {
+             adr[middle] = L('V');
+
+             CHAR *cp = memrchr (&adr[outer], L('V'), nchars - outer);
+
+             if (cp - &adr[outer] != middle - outer)
+               {
+                 printf ("%s flunked for outer = %d, middle = %d\n",
+                         STRINGIFY (memrchr), outer, middle);
+                 result = 1;
+               }
+
+             adr[middle] = L('T');
+           }
+       }
+      for (outer = nchars; outer >= MAX (0, nchars - 128); --outer)
+       {
+         CHAR *cp = memrchr (&adr[outer], L('V'), nchars - outer);
+
+         if (cp != NULL)
+           {
+             printf ("%s flunked for outer = %d\n",
+                     STRINGIFY (memrchr), outer);
+             result = 1;
+           }
+       }
 #endif
 
       /* strcpy/wcscpy test */