X-Git-Url: http://git.sourceforge.jp/view?p=shogi-server%2Fshogi-server.git;a=blobdiff_plain;f=shogi_server%2Fusi.rb;h=788bd4ff9726da4210a617019ff16fd3b34102aa;hp=39ca24ecb62fbd4af5ec30d130c91421ed000aa9;hb=9c4be91e5120e8fd4c5aa2e3def7bad24fea03cb;hpb=ec11b3359a4258d7808036231f959463e8cb608e

diff --git a/shogi_server/usi.rb b/shogi_server/usi.rb
index 39ca24e..788bd4f 100644
--- a/shogi_server/usi.rb
+++ b/shogi_server/usi.rb
@@ -28,7 +28,10 @@ module ShogiServer # for a namespace
       # i -> 9
       def alphabetToDan(s)
         if RUBY_VERSION >= "1.9.1"
-          return s.bytes[0]-96
+          # String.bytes is incompatible:
+          #  - Ruby 1.9.3 String.bytes returns Enumerator
+          #  - Ruby 2.1.0 String.bytes returns [Integer]
+          return s.each_byte.next-96
         else
           return s[0]-96
         end