From 2cb6c2778134575e425cd5d1bdef036100a25d0d Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Tue, 22 Sep 2015 19:10:03 +0900
Subject: String#index should no longer take integer argument

---
 mrblib/string.rb |  2 +-
 src/string.c     | 11 -----------
 2 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/mrblib/string.rb b/mrblib/string.rb
index 5765cff9b..7209f03d2 100644
--- a/mrblib/string.rb
+++ b/mrblib/string.rb
@@ -12,7 +12,7 @@ class String
   def each_line(&block)
     # expect that str.index accepts an Integer for 1st argument as a byte data
     offset = 0
-    while pos = self.index(0x0a, offset)
+    while pos = self.index("\n", offset)
       block.call(self[offset, pos + 1 - offset])
       offset = pos + 1
     end
diff --git a/src/string.c b/src/string.c
index 12aefa8a0..e7049d678 100644
--- a/src/string.c
+++ b/src/string.c
@@ -1389,17 +1389,6 @@ mrb_str_index_m(mrb_state *mrb, mrb_value str)
   }
 
   switch (mrb_type(sub)) {
-    case MRB_TT_FIXNUM: {
-      mrb_int c = mrb_fixnum(sub);
-      mrb_int len = RSTRING_LEN(str);
-      unsigned char *p = (unsigned char*)RSTRING_PTR(str);
-
-      for (;pos<len;pos++) {
-        if (p[pos] == c) return mrb_fixnum_value(pos);
-      }
-      return mrb_nil_value();
-    }
-
     default: {
       mrb_value tmp;
 
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