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-rw-r--r--numeric.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/numeric.c b/numeric.c
index e8ea607..6bc2e44 100644
--- a/numeric.c
+++ b/numeric.c
@@ -6,7 +6,7 @@
$Date$
created at: Fri Aug 13 18:33:09 JST 1993
- Copyright (C) 1993-1998 Yukihiro Matsumoto
+ Copyright (C) 1993-1999 Yukihiro Matsumoto
************************************************/
@@ -778,6 +778,27 @@ int_chr(num)
}
static VALUE
+rb_fix_induced_from(klass, x)
+ VALUE klass, x;
+{
+ return rb_funcall(x, rb_intern("to_i"), 0);
+}
+
+static VALUE
+rb_int_induced_from(klass, x)
+ VALUE klass, x;
+{
+ return rb_funcall(x, rb_intern("to_i"), 0);
+}
+
+static VALUE
+rb_flo_induced_from(klass, x)
+ VALUE klass, x;
+{
+ return rb_funcall(x, rb_intern("to_f"), 0);
+}
+
+static VALUE
fix_uminus(num)
VALUE num;
{
@@ -1380,11 +1401,15 @@ Init_Numeric()
rb_define_method(rb_cInteger, "downto", int_downto, 1);
rb_define_method(rb_cInteger, "step", int_step, 2);
rb_define_method(rb_cInteger, "times", int_dotimes, 0);
+ rb_include_module(rb_cInteger, rb_mPrecision);
rb_define_method(rb_cInteger, "succ", int_succ, 0);
rb_define_method(rb_cInteger, "next", int_succ, 0);
rb_define_method(rb_cInteger, "chr", int_chr, 0);
rb_cFixnum = rb_define_class("Fixnum", rb_cInteger);
+ rb_include_module(rb_cFixnum, rb_mPrecision);
+ rb_define_singleton_method(rb_cFixnum, "induced_from", rb_fix_induced_from, 1);
+ rb_define_singleton_method(rb_cInteger, "induced_from", rb_int_induced_from, 1);
rb_undef_method(CLASS_OF(rb_cFixnum), "new");
@@ -1437,6 +1462,9 @@ Init_Numeric()
rb_undef_method(CLASS_OF(rb_cFloat), "new");
+ rb_define_singleton_method(rb_cFloat, "induced_from", rb_flo_induced_from, 1);
+ rb_include_module(rb_cFloat, rb_mPrecision);
+
rb_define_method(rb_cFloat, "to_s", flo_to_s, 0);
rb_define_method(rb_cFloat, "coerce", flo_coerce, 1);
rb_define_method(rb_cFloat, "-@", flo_uminus, 0);