[libsigcplusplus] copy operations: Name all parameters src.

[Murray Cumming <murrayc src gnome org>]

commit 17176689106bb14b75ac741c8e86e10792839b09
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Apr 27 13:43:54 2016 +0200

    copy operations: Name all parameters src.
    
    To make it more obvious that these are copy operations.

 sigc++/connection.cc   |    4 ++--
 sigc++/connection.h    |    2 +-
 sigc++/functors/slot.h |    4 ++--
 sigc++/signal.h        |   10 +++++-----
 4 files changed, 10 insertions(+), 10 deletions(-)
---
diff --git a/sigc++/connection.cc b/sigc++/connection.cc
index 7f1ba8b..10549b3 100644
--- a/sigc++/connection.cc
+++ b/sigc++/connection.cc
@@ -42,9 +42,9 @@ connection::connection(const connection& c) : slot_(c.slot_)
 }
 
 connection&
-connection::operator=(const connection& c)
+connection::operator=(const connection& src)
 {
-  set_slot(c.slot_);
+  set_slot(src.slot_);
   return *this;
 }
 
diff --git a/sigc++/connection.h b/sigc++/connection.h
index e8ec869..4624636 100644
--- a/sigc++/connection.h
+++ b/sigc++/connection.h
@@ -56,7 +56,7 @@ struct SIGC_API connection : public notifiable
   /** Overrides this connection object copying another one.
    * @param c The connection object to make a copy from.
    */
-  connection& operator=(const connection& c);
+  connection& operator=(const connection& src);
 
   ~connection();
 
diff --git a/sigc++/functors/slot.h b/sigc++/functors/slot.h
index a40f9bc..8807660 100644
--- a/sigc++/functors/slot.h
+++ b/sigc++/functors/slot.h
@@ -63,8 +63,8 @@ public:
     sigc::visit_each_trackable(slot_do_bind(this), *functor_);
   }
 
-  inline typed_slot_rep(const typed_slot_rep& cl)
-    : slot_rep(cl.call_, &destroy, &dup), functor_(std::make_unique<adaptor_type>(*cl.functor_))
+  inline typed_slot_rep(const typed_slot_rep& src)
+    : slot_rep(src.call_, &destroy, &dup), functor_(std::make_unique<adaptor_type>(*src.functor_))
   {
     sigc::visit_each_trackable(slot_do_bind(this), *functor_);
   }
diff --git a/sigc++/signal.h b/sigc++/signal.h
index 8c80659..a7327c7 100644
--- a/sigc++/signal.h
+++ b/sigc++/signal.h
@@ -105,15 +105,15 @@ struct slot_iterator_buf
     return tmp;
   }
 
-  bool operator==(const slot_iterator_buf& other) const
+  bool operator==(const slot_iterator_buf& src) const
   {
-    return (!c_ || (i_ == other.i_));
+    return (!c_ || (i_ == src.i_));
   } /* If '!c_' the iterators are empty.
      * Unfortunately, empty stl iterators are not equal.
      * We are forcing equality so that 'first==last'
      * in the accumulator's emit function yields true. */
 
-  bool operator!=(const slot_iterator_buf& other) const { return (c_ && (i_ != other.i_)); }
+  bool operator!=(const slot_iterator_buf& src) const { return (c_ && (i_ != src.i_)); }
 
 private:
   iterator_type i_;
@@ -181,9 +181,9 @@ struct slot_iterator_buf<T_emitter, void>
     return tmp;
   }
 
-  bool operator==(const slot_iterator_buf& other) const { return i_ == other.i_; }
+  bool operator==(const slot_iterator_buf& src) const { return i_ == src.i_; }
 
-  bool operator!=(const slot_iterator_buf& other) const { return i_ != other.i_; }
+  bool operator!=(const slot_iterator_buf& src) const { return i_ != src.i_; }
 
 private:
   iterator_type i_;