X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fflags.h;h=ea4fa3adfd2c050b06bdd5c099da64282e12ef44;hp=547cc5949262b27ad9920b01d4ba284c7ff7f995;hb=cfdc2c31088bb196426dd071de5181248df2e160;hpb=c7299e51d5ecf61b5d85bdfeb9a2db536abf18bb

diff --git a/ginac/flags.h b/ginac/flags.h
index 547cc594..ea4fa3ad 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) 1999-2009 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2014 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
@@ -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, add, mul 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
 	};
 };