summaryrefslogtreecommitdiff
path: root/prec.c
diff options
context:
space:
mode:
authormatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>1999-08-13 05:45:20 +0000
committermatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>1999-08-13 05:45:20 +0000
commit65a5162550f58047974793cdc8067a970b2435c0 (patch)
tree082bb7d5568f3b2e36e3fe166e9f3039394fcf44 /prec.c
parentfcd020c83028f5610d382e85a2df00223e12bd7e (diff)
1.4.0
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'prec.c')
-rw-r--r--prec.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/prec.c b/prec.c
new file mode 100644
index 0000000..693b81b
--- /dev/null
+++ b/prec.c
@@ -0,0 +1,81 @@
+/************************************************
+
+ ruby.h -
+
+ $Author$
+ $Date$
+ created at: Tue Jan 26 02:40:41 1999
+
+ Copyright (C) 1993-1999 Yukihiro Matsumoto
+
+*************************************************/
+
+#include "ruby.h"
+
+VALUE rb_mPrecision;
+
+static ID prc_pr, prc_if;
+
+static VALUE
+prec_prec(x, klass)
+ VALUE x, klass;
+{
+ return rb_funcall(klass, prc_if, 1, x);
+}
+
+static VALUE
+prec_prec_i(x)
+ VALUE x;
+{
+ VALUE klass = rb_cInteger;
+
+ return rb_funcall(x, prc_pr, 1, klass);
+}
+
+static VALUE
+prec_prec_f(x)
+ VALUE x;
+{
+ VALUE klass = rb_cFloat;
+
+ return rb_funcall(x, prc_pr, 1, klass);
+}
+
+static VALUE
+prec_induced_from(module, x)
+
+{
+ rb_raise(rb_eTypeError, "undefined conversion from %s into %s",
+ rb_class2name(CLASS_OF(x)), rb_class2name(module));
+}
+
+static VALUE
+prec_append_features(module, include)
+ VALUE module, include;
+{
+ switch (TYPE(include)) {
+ case T_CLASS:
+ case T_MODULE:
+ break;
+ default:
+ Check_Type(include, T_CLASS);
+ break;
+ }
+ rb_include_module(include, module);
+ rb_define_singleton_method(include, "induced_from", prec_induced_from, 1);
+ return module;
+}
+
+
+void
+Init_Precision()
+{
+ rb_mPrecision = rb_define_module("Precision");
+ rb_define_singleton_method(rb_mPrecision, "append_features", prec_append_features, 1);
+ rb_define_method(rb_mPrecision, "prec", prec_prec, 1);
+ rb_define_method(rb_mPrecision, "prec_i", prec_prec_i, 0);
+ rb_define_method(rb_mPrecision, "prec_f", prec_prec_f, 0);
+
+ prc_pr = rb_intern("prec");
+ prc_if = rb_intern("induced_from");
+}