Avoid some explicit copying of STL containers.

[ginac.git] / ginac / expairseq.cpp

diff --git a/ginac/expairseq.cpp b/ginac/expairseq.cpp
index 0e67ec9a4e60733293d51db65c3e13f1d1751ade..e6bd91a7a98d0d38e0e83df4eca909063a9bdc7f 100644 (file)
--- a/ginac/expairseq.cpp
+++ b/ginac/expairseq.cpp
@@ -715,8 +715,8 @@ void expairseq::construct_from_2_expairseq(const expairseq &s1,
        }
        
        if (needs_further_processing) {
-               epvector v = seq;
-               seq.clear();
+               // Clear seq and start over.
+               epvector v = std::move(seq);
                construct_from_epvector(std::move(v));
        }
 }
@@ -776,8 +776,8 @@ void expairseq::construct_from_expairseq_ex(const expairseq &s,
        }
 
        if (needs_further_processing) {
-               epvector v = seq;
-               seq.clear();
+               // Clear seq and start over.
+               epvector v = std::move(seq);
                construct_from_epvector(std::move(v));
        }
 }
@@ -964,8 +964,8 @@ void expairseq::combine_same_terms_sorted_seq()
                seq.erase(itout,last);
 
        if (needs_further_processing) {
-               epvector v = seq;
-               seq.clear();
+               // Clear seq and start over.
+               epvector v = std::move(seq);
                construct_from_epvector(std::move(v));
        }
 }