hsbt	2016-10-14 18:27:23 +0900 (Fri, 14 Oct 2016)

  New Revision: 56421

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56421

  Log:
    * object.c: Improve documentation for Integer conversion.
      [ruby-core:71661][Bug #11736][ci skip]

  Modified files:
    trunk/ChangeLog
    trunk/object.c
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 56420)
+++ ChangeLog	(revision 56421)
@@ -1,3 +1,8 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Fri Oct 14 18:27:18 2016  SHIBATA Hiroshi  <hsbt@r...>
+
+	* object.c: Improve documentation for Integer conversion.
+	  [ruby-core:71661][Bug #11736][ci skip]
+
 Fri Oct 14 18:00:20 2016  SHIBATA Hiroshi  <hsbt@r...>
 
 	* lib/logger.rb: Improve Logger.new option documentation.
Index: object.c
===================================================================
--- object.c	(revision 56420)
+++ object.c	(revision 56421)
@@ -2968,11 +2968,14 @@ FUNC_MINIMIZED(static VALUE rb_f_float(V https://github.com/ruby/ruby/blob/trunk/object.c#L2968
  *     Float(arg)    -> float
  *
  *  Returns <i>arg</i> converted to a float. Numeric types are converted
- *  directly, the rest are converted using <i>arg</i>.to_f.
+ *  directly, and with exception to string and nil the rest are converted using <i>arg</i>.to_f.
+ *  Converting a <code>string</code> with invalid characters will result in a <code>ArgumentError</code>.
  *  Converting <code>nil</code> generates a <code>TypeError</code>.
  *
- *     Float(1)           #=> 1.0
- *     Float("123.456")   #=> 123.456
+ *     Float(1)                 #=> 1.0
+ *     Float("123.456")         #=> 123.456
+ *     Float("123.0_badstring") #=> ArgumentError: invalid value for Float(): "123.0_badstring"
+ *     Float(nil)               #=> TypeError: can't convert nil into Float
  */
 
 static VALUE

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