X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Fflags.h;h=b9f47164119d32314bae6f2caf0aa0de84d80104;hb=62168ea93d23c81172ad07f9ec2f7044d1570681;hp=ef6767060e05103cd9d3f34a8bd29fde8ab09b61;hpb=83a7ee99a947cbbf331018b803ad6be43a9ccd45;p=ginac.git

diff --git a/ginac/flags.h b/ginac/flags.h
index ef676706..b9f47164 100644
--- a/ginac/flags.h
+++ b/ginac/flags.h
@@ -3,7 +3,7 @@
  *  Collection of all flags used through the GiNaC framework. */
 
 /*
- *  GiNaC Copyright (C) 1999-2008 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2015 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
@@ -20,8 +20,8 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#ifndef __GINAC_FLAGS_H__
-#define __GINAC_FLAGS_H__
+#ifndef GINAC_FLAGS_H
+#define GINAC_FLAGS_H
 
 namespace GiNaC {
 
@@ -31,7 +31,8 @@ public:
 	enum {
 		expand_indexed = 0x0001,      ///< expands (a+b).i to a.i+b.i
 		expand_function_args = 0x0002, ///< expands the arguments of functions
-		expand_rename_idx = 0x0004 ///< used internally by mul::expand()
+		expand_rename_idx = 0x0004, ///< used internally by mul::expand()
+		expand_transcendental = 0x0008 ///< expands trancendental functions like log and exp
 	};
 };
 
@@ -196,7 +197,10 @@ public:
 		hash_calculated = 0x0008, ///< .calchash() has already done its job
 		not_shareable   = 0x0010, ///< don't share instances of this object between different expressions unless explicitly asked to (used by ex::compare())
 		has_indices	= 0x0020,
-		has_no_indices	= 0x0040  // ! (has_indices || has_no_indices) means "don't know"
+		has_no_indices	= 0x0040, // ! (has_indices || has_no_indices) means "don't know"
+		is_positive	= 0x0080,
+		is_negative	= 0x0100,
+		purely_indefinite = 0x0200  // If set in a mul, then it does not contains any terms with determined signs, used in power::expand()
 	};
 };
 
@@ -204,7 +208,7 @@ public:
 class info_flags {
 public:
 	enum {
-		// answered by class numeric and symbols/constants in particular domains
+		// answered by class numeric, add, mul, function and symbols/constants in particular domains
 		numeric,
 		real,
 		rational,
@@ -256,7 +260,10 @@ public:
 		idx,
 
 		// answered by classes numeric, symbol, add, mul, power
-		expanded
+		expanded,
+
+		// is meaningful for mul only
+		indefinite
 	};
 };
 
@@ -281,6 +288,15 @@ public:
 	};
 };
 
+/** Flags to control the polynomial factorization. */
+class factor_options {
+public:
+	enum {
+		polynomial = 0x0000, ///< factor only expressions that are polynomials
+		all        = 0x0001  ///< factor all polynomial subexpressions
+	};
+};
+
 } // namespace GiNaC
 
-#endif // ndef __GINAC_FLAGS_H__
+#endif // ndef GINAC_FLAGS_H