X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Ffail.h;h=75a75bfcc10a01921228d7e2bce23939b3882874;hp=1ff994853049ce05e012e24919aaa864623a081d;hb=ffad02322624ab79fdad1a23a3aa83cd67376151;hpb=6b3768e8c544739ae53321539cb4d1e3112ded1b

diff --git a/ginac/fail.h b/ginac/fail.h
index 1ff99485..75a75bfc 100644
--- a/ginac/fail.h
+++ b/ginac/fail.h
@@ -1,58 +1,52 @@
 /** @file fail.h
  *
- *  Interface to class signaling failure of operation. Considered obsolete all
- *  this stuff ought to be replaced by exceptions. */
+ *  Interface to class signaling failure of operation. Considered obsolete
+ *  somewhat obsolete (most of this can be replaced by exceptions). */
 
-#ifndef _FAIL_H_
-#define _FAIL_H_
+/*
+ *  GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
 
-class fail;
+#ifndef __GINAC_FAIL_H__
+#define __GINAC_FAIL_H__
 
 #include "basic.h"
-#include "flags.h"
+
+namespace GiNaC {
 
 class fail : public basic
 {
-
-// member functions
-
-    // default constructor, destructor, copy constructor assignment operator and helpers
-public:
-    fail();
-    ~fail();
-    fail(fail const & other);
-    fail const & operator=(fail const & other);
+	GINAC_DECLARE_REGISTERED_CLASS(fail, basic)
+	
+	// functions overriding virtual functions from base classes
 protected:
-    void copy(fail const & other);
-    void destroy(bool call_parent);
+	unsigned return_type() const { return return_types::noncommutative_composite; };
 
-    // other constructors
-    // none
-
-    // functions overriding virtual functions from bases classes
-public:
-    basic * duplicate() const;
-    void printraw(ostream & os) const;
-    void print(ostream & os, unsigned upper_precedence=0) const;
+	// non-virtual functions in this class
 protected:
-    int compare_same_type(basic const & other) const;
-    unsigned return_type(void) const { return return_types::noncommutative_composite; };
-    
-    // new virtual functions which can be overridden by derived classes
-    // none
-
-    // non-virtual functions in this class
-    // none
-
-// member variables
-// none
+	void do_print(const print_context & c, unsigned level) const;
 };
 
-// global constants
-
-extern const fail some_fail;
-extern type_info const & typeid_fail;
-
-#endif // ndef _FAIL_H_
+/** Specialization of is_exactly_a<fail>(obj) for fail objects. */
+template<> inline bool is_exactly_a<fail>(const basic & obj)
+{
+	return obj.tinfo()==TINFO_fail;
+}
 
+} // namespace GiNaC
 
+#endif // ndef __GINAC_FAIL_H__