Avoid "catching polymorphic type by value" warnings.

[ginac.git] / ginac / inifcns_trans.cpp

diff --git a/ginac/inifcns_trans.cpp b/ginac/inifcns_trans.cpp
index 9982853961286be457af33ee445339aeb4651f65..49e30047f9f78485e84ff4d3650dfd737bc59ef9 100644 (file)
--- 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) 1999-2020 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
@@ -197,7 +197,7 @@ static ex log_series(const ex &arg,
        // maybe substitution of rel into arg fails because of a pole
        try {
                arg_pt = arg.subs(rel, subs_options::no_pattern);
-       } catch (pole_error) {
+       } catch (pole_error &) {
                must_expand_arg = true;
        }
        // or we are at the branch point anyways
@@ -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();