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-rw-r--r--sigc++/signal_base.cc4
1 files changed, 2 insertions, 2 deletions
diff --git a/sigc++/signal_base.cc b/sigc++/signal_base.cc
index 8d7c357..4916002 100644
--- a/sigc++/signal_base.cc
+++ b/sigc++/signal_base.cc
@@ -29,9 +29,9 @@ namespace internal
struct self_and_iter : public notifiable
{
signal_impl* self_;
- signal_impl::iterator_type iter_;
+ const signal_impl::iterator_type iter_;
- self_and_iter(signal_impl* self, signal_impl::iterator_type iter) : self_(self), iter_(iter) {}
+ self_and_iter(signal_impl* self, const signal_impl::iterator_type& iter) : self_(self), iter_(iter) {}
};
signal_impl::signal_impl() : ref_count_(0), exec_count_(0), deferred_(false)