From 1ced7171c89b0a2be4126a038f8abe04c7d7cff1 Mon Sep 17 00:00:00 2001
From: "Joachim Wuttke (o)" <j.wuttke@fz-juelich.de>
Date: Tue, 23 Jun 2020 20:50:50 +0200
Subject: [PATCH] IFactory.h: explain create_new
---
Core/StandardSamples/IFactory.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Core/StandardSamples/IFactory.h b/Core/StandardSamples/IFactory.h
index f0a0396253c..7e88f7049dc 100644
--- a/Core/StandardSamples/IFactory.h
+++ b/Core/StandardSamples/IFactory.h
@@ -98,6 +98,12 @@ protected:
DescriptionMap_t m_descriptions; //!< map of correspondence of objectsId and description
};
+//! Returns new instance of class T.
+//!
+//! This templated function is used in catalogues in form of a function pointer
+//! 'create_new<T>', with no function arguments supplied. Equivalently, we could
+//! use a lambda function '[](){return new T;}'.
+
template <class T> T* create_new()
{
return new T();
--
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