util.c: constify

* util.c (scan_digits): constify readonly table.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41730 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/util.c b/util.c
index fb72931ed5..93d0547498 100644
--- a/util.c
+++ b/util.c
@@ -58,7 +58,7 @@ ruby_scan_hex(const char *start, size_t len, size_t *retlen)
 static unsigned long
 scan_digits(const char *str, int base, size_t *retlen, int *overflow)
 {
-    static signed char table[] = {
+    static const signed char table[] = {
         /*     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f */
         /*0*/ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
         /*1*/ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,