X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fbasic.h;h=348523791a19afa50abd1c84006c49fe003758c8;hp=fc825226538a1ff5672ddac9cf991eea1932a850;hb=83a7ee99a947cbbf331018b803ad6be43a9ccd45;hpb=29b420743599f001b8bfc8b63fb6ac81aa3dfba7

diff --git a/ginac/basic.h b/ginac/basic.h
index fc825226..34852379 100644
--- a/ginac/basic.h
+++ b/ginac/basic.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's ABC. */
 
 /*
- *  GiNaC Copyright (C) 1999-2006 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2008 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
@@ -25,6 +25,7 @@
 
 #include <cstddef> // for size_t
 #include <vector>
+#include <set>
 #include <map>
 // CINT needs <algorithm> to work properly with <vector>
 #include <algorithm>
@@ -45,6 +46,7 @@ class archive_node;
 class print_context;
 
 typedef std::vector<ex> exvector;
+typedef std::set<ex, ex_is_less> exset;
 typedef std::map<ex, ex, ex_is_less> exmap;
 
 // Define this to enable some statistical output for comparisons and hashing
@@ -180,6 +182,7 @@ public:
 	}
 
 	// degree/coeff
+	virtual bool is_polynomial(const ex & var) const;
 	virtual int degree(const ex & s) const;
 	virtual int ldegree(const ex & s) const;
 	virtual ex coeff(const ex & s, int n = 1) const;
@@ -214,8 +217,10 @@ public:
 	virtual unsigned return_type() const;
 	virtual tinfo_t return_type_tinfo() const;
 
-	// complex conjugation
+	// functions for complex expressions
 	virtual ex conjugate() const;
+	virtual ex real_part() const;
+	virtual ex imag_part() const;
 
 	// functions that should be called from class ex only
 protected: