[C++20] Clean up using-declarations.

[ginac.git] / doc / examples / mystring.cpp

diff --git a/doc/examples/mystring.cpp b/doc/examples/mystring.cpp
index 56c844d2cae5401afc801f43edb7807d1585db20..640f81eba84478e5a3d8a5b91d81edcf75a6b670 100644 (file)
--- a/doc/examples/mystring.cpp
+++ b/doc/examples/mystring.cpp
@@ -4,9 +4,10 @@
 #include <iostream>
 #include <string>   
 #include <stdexcept>
-using namespace std;
 
 #include <ginac/ginac.h>
+
+using namespace std;
 using namespace GiNaC;
 
 class mystring : public basic