X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fflags.h;h=0c66afd033b438a06a57fbd1f28ff0dac56f12c6;hp=372b89932ec995a4f8fe1c2de6c778163cb02150;hb=d7a37762af4cdcaccb97c941427f8dfcf8448205;hpb=9fe3a96b35a68c4f6c16c21322161dbb26118ed0

diff --git a/ginac/flags.h b/ginac/flags.h
index 372b8993..0c66afd0 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) 1999-2007 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2016 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 {
 
@@ -30,7 +30,9 @@ class expand_options {
 public:
 	enum {
 		expand_indexed = 0x0001,      ///< expands (a+b).i to a.i+b.i
-		expand_function_args = 0x0002 ///< expands the arguments of functions
+		expand_function_args = 0x0002, ///< expands the arguments of functions
+		expand_rename_idx = 0x0004, ///< used internally by mul::expand()
+		expand_transcendental = 0x0008 ///< expands transcendental functions like log and exp
 	};
 };
 
@@ -38,7 +40,7 @@ public:
 class has_options {
 public:
 	enum {
-		algebraic = 0x0001,              ///< enable algebraic matching
+		algebraic = 0x0001              ///< enable algebraic matching
 	};
 };
 
@@ -53,7 +55,7 @@ public:
 		pattern_is_product = 0x0004,     ///< used internally by expairseq::subschildren()
 		pattern_is_not_product = 0x0008, ///< used internally by expairseq::subschildren()
 		no_index_renaming = 0x0010,
-		// To indicate that we want to substitue an index by something that is
+		// To indicate that we want to substitute an index by something that
 		// is not an index. Without this flag the index value would be
 		// substituted in that case.
 		really_subs_idx = 0x0020
@@ -195,7 +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()
 	};
 };
 
@@ -203,7 +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,
@@ -245,7 +250,6 @@ public:
 		rational_polynomial,
 		crational_polynomial,
 		rational_function,
-		algebraic,
 
 		// answered by class indexed
 		indexed,      // class can carry indices
@@ -255,7 +259,10 @@ public:
 		idx,
 
 		// answered by classes numeric, symbol, add, mul, power
-		expanded
+		expanded,
+
+		// is meaningful for mul only
+		indefinite
 	};
 };
 
@@ -280,6 +287,15 @@ 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