signal_impl_exec_holder: Make a constructor explicit.

murraycu · murraycu · commit 3ff8ca086fdb · 2017-07-21T08:29:25.000+02:00
Because it has only one parameter.
Noticed by clang-tidy.
diff --git a/sigc++/signal_base.h b/sigc++/signal_base.h
@@ -178,7 +178,7 @@ struct SIGC_API signal_impl_exec_holder
   /** Increments the execution counter of the parent sigc::signal_impl object.
    * @param sig The parent sigc::signal_impl object.
    */
-  inline signal_impl_exec_holder(signal_impl* sig) noexcept
+  inline explicit signal_impl_exec_holder(signal_impl* sig) noexcept
   : sig_(sig)
   {
     sig_->reference_exec();

Original file line number	Diff line number	Diff line change
`@@ -178,7 +178,7 @@ struct SIGC_API signal_impl_exec_holder`
`178`	`178`	`/** Increments the execution counter of the parent sigc::signal_impl object.`
`179`	`179`	`* @param sig The parent sigc::signal_impl object.`
`180`	`180`	`*/`
`181`		`- inline signal_impl_exec_holder(signal_impl* sig) noexcept`
	`181`	`+ inline explicit signal_impl_exec_holder(signal_impl* sig) noexcept`
`182`	`182`	`: sig_(sig)`
`183`	`183`	`{`
`184`	`184`	`sig_->reference_exec();`