matz	2009-08-17 07:28:48 +0900 (Mon, 17 Aug 2009)

  New Revision: 24561

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=24561

  Log:
    * numeric.c (num_imaginary): num#i to return imaginary counterpart
      of the given numeric.
    * complex.c (Init_Complex): undef #i for complex numbers.

  Modified files:
    trunk/ChangeLog
    trunk/complex.c
    trunk/numeric.c

Index: complex.c
===================================================================
--- complex.c	(revision 24560)
+++ complex.c	(revision 24561)
@@ -1906,6 +1906,7 @@
     rb_undef_method(rb_cComplex, "round");
     rb_undef_method(rb_cComplex, "step");
     rb_undef_method(rb_cComplex, "truncate");
+    rb_undef_method(rb_cComplex, "i");
 
 #if 0 /* NUBY */
     rb_undef_method(rb_cComplex, "//");
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 24560)
+++ ChangeLog	(revision 24561)
@@ -1,3 +1,10 @@
+Mon Aug 17 07:16:10 2009  Yukihiro Matsumoto  <matz@r...>
+
+	* numeric.c (num_imaginary): num#i to return imaginary counterpart
+	  of the given numeric.
+
+	* complex.c (Init_Complex): undef #i for complex numbers.
+
 Mon Aug 17 00:17:33 2009  Tadayoshi Funaba  <tadf@d...>
 
 	* lib/complex.rb, lib/rational.rb: added warning messages.
Index: numeric.c
===================================================================
--- numeric.c	(revision 24560)
+++ numeric.c	(revision 24561)
@@ -238,6 +238,21 @@
 
 /*
  *  call-seq:
+ *     num.i  ->  Complex(0,num)
+ *
+ *  Returns the corresponding imaginary number.
+ *  Not available for complex numbers.
+ */
+
+static VALUE
+num_imaginary(VALUE num)
+{
+    return rb_complex_new(INT2FIX(0), num);
+}
+
+
+/*
+ *  call-seq:
  *     -num  ->  numeric
  *
  *  Unary Minus---Returns the receiver's value, negated.
@@ -3154,6 +3169,7 @@
     rb_define_method(rb_cNumeric, "initialize_copy", num_init_copy, 1);
     rb_define_method(rb_cNumeric, "coerce", num_coerce, 1);
 
+    rb_define_method(rb_cNumeric, "i", num_imaginary, 0);
     rb_define_method(rb_cNumeric, "+@", num_uplus, 0);
     rb_define_method(rb_cNumeric, "-@", num_uminus, 0);
     rb_define_method(rb_cNumeric, "<=>", num_cmp, 1);

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