зеркало из https://github.com/github/ruby.git
82 строки
1.6 KiB
C
82 строки
1.6 KiB
C
/**********************************************************************
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prec.c -
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$Author$
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$Date$
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created at: Tue Jan 26 02:40:41 2000
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Copyright (C) 1993-2003 Yukihiro Matsumoto
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**********************************************************************/
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#include "ruby.h"
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VALUE rb_mPrecision;
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static ID prc_pr, prc_if;
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static VALUE
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prec_prec(x, klass)
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VALUE x, klass;
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{
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return rb_funcall(klass, prc_if, 1, x);
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}
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static VALUE
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prec_prec_i(x)
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VALUE x;
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{
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VALUE klass = rb_cInteger;
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return rb_funcall(x, prc_pr, 1, klass);
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}
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static VALUE
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prec_prec_f(x)
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VALUE x;
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{
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VALUE klass = rb_cFloat;
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return rb_funcall(x, prc_pr, 1, klass);
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}
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static VALUE
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prec_induced_from(module, x)
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VALUE module, x;
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{
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rb_raise(rb_eTypeError, "undefined conversion from %s into %s",
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rb_obj_classname(x), rb_class2name(module));
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return Qnil; /* not reached */
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}
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static VALUE
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prec_included(module, include)
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VALUE module, include;
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{
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switch (TYPE(include)) {
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case T_CLASS:
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case T_MODULE:
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break;
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default:
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Check_Type(include, T_CLASS);
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break;
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}
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rb_define_singleton_method(include, "induced_from", prec_induced_from, 1);
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return module;
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}
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void
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Init_Precision()
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{
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rb_mPrecision = rb_define_module("Precision");
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rb_define_singleton_method(rb_mPrecision, "included", prec_included, 1);
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rb_define_method(rb_mPrecision, "prec", prec_prec, 1);
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rb_define_method(rb_mPrecision, "prec_i", prec_prec_i, 0);
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rb_define_method(rb_mPrecision, "prec_f", prec_prec_f, 0);
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prc_pr = rb_intern("prec");
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prc_if = rb_intern("induced_from");
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}
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