duerst	2017-03-17 11:24:53 +0900 (Fri, 17 Mar 2017)

  New Revision: 58000

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=58000

  Log:
    clarifiy 'codepoint' in documentation of String#each_codepoint
    
    Make sure it's clear that the returned values are not Unicode codepoints
    for encodings other than UTF-8/UTF-16(BE|LE)/UTF-32(BE|LE).
    
    [ci skip] [Bug #13321]

  Modified files:
    trunk/string.c
Index: string.c
===================================================================
--- string.c	(revision 57999)
+++ string.c	(revision 58000)
@@ -4147,7 +4147,7 @@ str_upto_each(VALUE beg, VALUE end, int https://github.com/ruby/ruby/blob/trunk/string.c#L4147
 	}
 	else {
 	    ID op = excl ? '<' : idLE;
-	    VALUE args[2], fmt = rb_fstring_cstr("%.*d");
+	    VALUE args[2], fmt = rb_obj_freeze(rb_usascii_str_new_cstr("%.*d"));
 
 	    args[0] = INT2FIX(width);
 	    while (rb_funcall(b, op, 1, e)) {
@@ -7965,7 +7965,9 @@ rb_str_enumerate_codepoints(VALUE str, i https://github.com/ruby/ruby/blob/trunk/string.c#L7965
  *
  *  Passes the <code>Integer</code> ordinal of each character in <i>str</i>,
  *  also known as a <i>codepoint</i> when applied to Unicode strings to the
- *  given block.
+ *  given block.  For encodings other than UTF-8/UTF-16(BE|LE)/UTF-32(BE|LE),
+ *  values are directly derived from the binary representation
+ *  of each character.
  *
  *  If no block is given, an enumerator is returned instead.
  *

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