merge revision(s) r45375,r48260,r48320,r48746: [Backport #10526]

	* complax.c: [DOC] Document number conversion of `nil` by @skade [fix GH-570] [ci skip]

	* object.c, rational.c: ditto.
	* object.c: fix document of Kernel.Stirng by @suzukaze
	  [fix GH-743][ci skip]

	* object.c (Module#const_defined?): [DOC] Revise the documentation.
	  Patch by Xavier Noria.
	  [Fixes GH-754] https://github.com/ruby/ruby/pull/754

	* object.c: [DOC] Revise documentation by Marcus Stollsteimer at
	  [ruby-core:66368].  [Bug #10526]
	  * #inspect: be more specific about generated string, remove
	    obsolete example.
	  * #nil?: use code examples instead of different call-seq's.
	  * #tap: clarify what is yielded.
	  * Integer(): be more specific about to_int and to_i, remove
	    reference to Ruby 1.8.
	  * Array(): fix error.
	  * Class: fix variable name style and indentation in example.
	  * improve consistency, fix typos and formatting.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@49367 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/complex.c b/complex.c
index e1d5ff9f2a..67b45dd6ae 100644
--- a/complex.c
+++ b/complex.c
@@ -433,6 +433,8 @@ f_complex_new2(VALUE klass, VALUE x, VALUE y)
  *
  *    Complex(1, 2)    #=> (1+2i)
  *    Complex('1+2i')  #=> (1+2i)
+ *    Complex(nil)     #=> TypeError
+ *    Complex(1, nil)  #=> TypeError
  *
  * Syntax of string form:
  *