X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Finifcns_trans.cpp;h=232db8c59a25e2b0ab3fb1b06607d5e2a656ca1d;hb=3d962a6ef2acd92207cdfc164a33d13c5c827dc9;hp=9982853961286be457af33ee445339aeb4651f65;hpb=47ecb72dce5ea9c917d1e1e77863c45a8b2b1bba;p=ginac.git

diff --git a/ginac/inifcns_trans.cpp b/ginac/inifcns_trans.cpp
index 99828539..232db8c5 100644
--- a/ginac/inifcns_trans.cpp
+++ b/ginac/inifcns_trans.cpp
@@ -4,7 +4,7 @@
  *  functions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2016 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2019 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
@@ -265,8 +265,12 @@ static ex log_series(const ex &arg,
 		const ex &point = rel.rhs();
 		const symbol foo;
 		const ex replarg = series(log(arg), s==foo, order).subs(foo==point, subs_options::no_pattern);
-		epvector seq { expair(-I*csgn(arg*I)*Pi, _ex0),
-		               expair(Order(_ex1), order) };
+		epvector seq;
+		if (order > 0) {
+			seq.reserve(2);
+			seq.push_back(expair(-I*csgn(arg*I)*Pi, _ex0));
+		}
+		seq.push_back(expair(Order(_ex1), order));
 		return series(replarg - I*Pi + pseries(rel, std::move(seq)), rel, order);
 	}
 	throw do_taylor();  // caught by function::series()
@@ -928,8 +932,12 @@ static ex atan_series(const ex &arg,
 			Order0correction += log((I*arg_pt+_ex_1)/(I*arg_pt+_ex1))*I*_ex_1_2;
 		else
 			Order0correction += log((I*arg_pt+_ex1)/(I*arg_pt+_ex_1))*I*_ex1_2;
-		epvector seq { expair(Order0correction, _ex0),
-		               expair(Order(_ex1), order) };
+		epvector seq;
+		if (order > 0) {
+			seq.reserve(2);
+			seq.push_back(expair(Order0correction, _ex0));
+		}
+		seq.push_back(expair(Order(_ex1), order));
 		return series(replarg - pseries(rel, std::move(seq)), rel, order);
 	}
 	throw do_taylor();
@@ -1534,8 +1542,12 @@ static ex atanh_series(const ex &arg,
 			Order0correction += log((arg_pt+_ex_1)/(arg_pt+_ex1))*_ex1_2;
 		else
 			Order0correction += log((arg_pt+_ex1)/(arg_pt+_ex_1))*_ex_1_2;
-		epvector seq { expair(Order0correction, _ex0),
-		               expair(Order(_ex1), order) };
+		epvector seq;
+		if (order > 0) {
+			seq.reserve(2);
+			seq.push_back(expair(Order0correction, _ex0));
+		}
+		seq.push_back(expair(Order(_ex1), order));
 		return series(replarg - pseries(rel, std::move(seq)), rel, order);
 	}
 	throw do_taylor();