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/**********************************************************************
prec.c -
$Author$
$Date$
created at: Tue Jan 26 02:40:41 2000
Copyright (C) 1993-2001 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)
VALUE module, x;
{
rb_raise(rb_eTypeError, "undefined conversion from %s into %s",
rb_class2name(CLASS_OF(x)), rb_class2name(module));
return Qnil; /* not reached */
}
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");
}
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