PR 83070 Fix -Wsign-compare warning

2017-11-22  Janne Blomqvist  <jb@gcc.gnu.org>

        PR libfortran/83070
        * intrinsics/eoshift0.c (eoshift0): Fix -Wsign-compare warning by
        making a_ex and r_ex index_type instead of size_t.

From-SVN: r255045

libgfortran/ChangeLog

+2017-11-22  Janne Blomqvist  <jb@gcc.gnu.org>
+
+	PR libfortran/83070
+	* intrinsics/eoshift0.c (eoshift0): Fix -Wsign-compare warning by
+	making a_ex and r_ex index_type instead of size_t.
+
 2017-11-20  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
 	PR libgfortran/78549

libgfortran/intrinsics/eoshift0.c

@@ -107,7 +107,7 @@ eoshift0 (gfc_array_char * ret, const gfc_array_char * array,
   if (which > 0)
     {
       /* Test if both ret and array are contiguous.  */
-      size_t r_ex, a_ex;
+      index_type r_ex, a_ex;
       r_ex = 1;
       a_ex = 1;
       do_blocked = true;