diff options
-rw-r--r-- | ChangeLog | 7 | ||||
-rw-r--r-- | complex.c | 1 | ||||
-rw-r--r-- | numeric.c | 16 |
3 files changed, 24 insertions, 0 deletions
@@ -1,3 +1,10 @@ +Mon Aug 17 07:16:10 2009 Yukihiro Matsumoto <matz@ruby-lang.org> + + * 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@dotrb.org> * lib/complex.rb, lib/rational.rb: added warning messages. @@ -1906,6 +1906,7 @@ Init_Complex(void) 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, "//"); @@ -238,6 +238,21 @@ num_uplus(VALUE num) /* * 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 @@ Init_Numeric(void) 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); |