Improve (fix?) smod: now it really converts into symmetric representation...

[ginac.git] / ginac / constant.h

diff --git a/ginac/constant.h b/ginac/constant.h
index c18f6fc9f01dd2669a08a3013067a8028587d364..efbe39e9d9beef52c4d7814b0f736c48206eb357 100644 (file)
--- a/ginac/constant.h
+++ b/ginac/constant.h
@@ -26,6 +26,7 @@
 #include <string>
 #include "basic.h"
 #include "ex.h"
+#include "archive.h"
 
 namespace GiNaC {
 
@@ -38,9 +39,6 @@ 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 +52,8 @@ 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 +76,7 @@ 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;