1 files changed, 5 insertions, 6 deletions

diff --git a/src/doc.c b/src/doc.c
index 3a53dc5174e..2d75ffe9753 100644
--- a/src/doc.c
+++ b/src/doc.c
@@ -725,7 +725,7 @@ thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ int
   bsize = SBYTES (string);
   bufp = buf = (unsigned char *) xmalloc (bsize);
 
-  strp = (unsigned char *) SDATA (string);
+  strp = SDATA (string);
   while (strp < SDATA (string) + SBYTES (string))
     {
       if (strp[0] == '\\' && strp[1] == '=')
@@ -761,7 +761,7 @@ thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ int
           start = strp;
           start_idx = start - SDATA (string);
 
-          while ((strp - (unsigned char *) SDATA (string)
+          while ((strp - SDATA (string)
                   < SBYTES (string))
                  && *strp != ']')
             strp++;
@@ -770,7 +770,7 @@ thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ int
           strp++;               /* skip ] */
 
           /* Save STRP in IDX.  */
-          idx = strp - (unsigned char *) SDATA (string);
+          idx = strp - SDATA (string);
           tem = Fintern (make_string (start, length_byte), Qnil);
 
           /* Note the Fwhere_is_internal can GC, so we have to take
@@ -821,8 +821,7 @@ thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ int
           start = strp;
           start_idx = start - SDATA (string);
 
-          while ((strp - (unsigned char *) SDATA (string)
-                  < SCHARS (string))
+          while ((strp - SDATA (string) < SCHARS (string))
                  && *strp != '}' && *strp != '>')
             strp++;
 
@@ -830,7 +829,7 @@ thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ int
           strp++;                       /* skip } or > */
 
           /* Save STRP in IDX.  */
-          idx = strp - (unsigned char *) SDATA (string);
+          idx = strp - SDATA (string);
 
           /* Get the value of the keymap in TEM, or nil if undefined.
              Do this while still in the user's current buffer