X-Git-Url: https://ginac.de/ginac.git//ginac.git?a=blobdiff_plain;ds=inline;f=ginac%2Fconstant.h;h=fc39375585674dc695c2f32f6231b7e80d0d21b2;hb=8fcaff0d29e20d570c2936a27ce110326b76390e;hp=8ca145cd4bfd848e9ade2f9478481bb99e471cda;hpb=619d77d2676f7f1a562fb9fefc0ba6754fe2d750;p=ginac.git

diff --git a/ginac/constant.h b/ginac/constant.h
index 8ca145cd..fc393755 100644
--- a/ginac/constant.h
+++ b/ginac/constant.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's constant types and some special constants. */
 
 /*
- *  GiNaC Copyright (C) 1999-2007 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2010 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
@@ -20,12 +20,14 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#ifndef __GINAC_CONSTANT_H__
-#define __GINAC_CONSTANT_H__
+#ifndef GINAC_CONSTANT_H
+#define GINAC_CONSTANT_H
 
-#include <string>
 #include "basic.h"
 #include "ex.h"
+#include "archive.h"
+
+#include <string>
 
 namespace GiNaC {
 
@@ -38,9 +40,6 @@ typedef ex (*evalffunctype)();
 class constant : public basic
 {
 	GINAC_DECLARE_REGISTERED_CLASS(constant, basic)
-	
-// member functions
-	
 	// other constructors
 public:
 	constant(const std::string & initname, evalffunctype efun = 0, const std::string & texname = std::string(), unsigned domain = domain::complex);
@@ -54,6 +53,8 @@ public:
 	ex conjugate() const;
 	ex real_part() const;
 	ex imag_part() const;
+	void archive(archive_node& n) const;
+	void read_archive(const archive_node& n, lst& syms);
 protected:
 	ex derivative(const symbol & s) const;
 	bool is_equal_same_type(const basic & other) const;
@@ -76,6 +77,7 @@ private:
 	static unsigned next_serial;
 	unsigned domain;      ///< numerical value this constant evalf()s to
 };
+GINAC_DECLARE_UNARCHIVER(constant); 
 
 extern const constant Pi;
 extern const constant Catalan;
@@ -83,4 +85,4 @@ extern const constant Euler;
 
 } // namespace GiNaC
 
-#endif // ndef __GINAC_CONSTANT_H__
+#endif // ndef GINAC_CONSTANT_H