[error] stupid bug is fixed

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
sailfishos · Sep 25, 2014 · b1d3dc0 · b1d3dc0
1 parent 367e12e
commit b1d3dc0
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/include/qtaround/error.hpp b/include/qtaround/error.hpp
@@ -21,12 +21,13 @@ class Error : public std::exception
     virtual ~Error() noexcept(true) {}
     virtual const char* what() const noexcept(true)
     {
-        QString s;
-        QDebug(&s) << m;
+        if (s.isEmpty())
+            s = dump(m);
         return s.toUtf8();
     }
 
     QVariantMap m;
+    mutable QString s;
 };
 
 static inline QDebug operator << (QDebug dst, error::Error const &src)