From 91fb084a2be5003dfd9ffed977f4f8a4c166775f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carsten=20Gr=C3=A4ser?= <graeser@dune-project.org>
Date: Fri, 4 Nov 2016 21:51:14 +0100
Subject: [PATCH] [doc] Add some more documentation to implementation
---
dune/common/overloadset.hh | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/dune/common/overloadset.hh b/dune/common/overloadset.hh
index 4f0aaf663..0c1b83126 100644
--- a/dune/common/overloadset.hh
+++ b/dune/common/overloadset.hh
@@ -30,6 +30,7 @@ namespace Impl {
F0(std::forward<FF0>(f0))
{}
+ // pull in operator() of F0 and of all F... via the base class
using F0::operator();
using Base::operator();
};
@@ -44,6 +45,7 @@ namespace Impl {
F0(std::forward<FF0>(f0))
{}
+ // pull in operator() of F0
using F0::operator();
};
@@ -95,6 +97,7 @@ namespace Impl {
F0(std::forward<FF0>(f0))
{}
+ // Forward to operator() of F0 if it can be called with the given arguments.
template<class... Args,
std::enable_if_t<Std::is_callable<F0(Args&&...)>::value, int> = 0>
decltype(auto) operator()(Args&&... args)
@@ -102,6 +105,9 @@ namespace Impl {
return F0::operator()(std::forward<Args>(args)...);
}
+ // Forward to operator() of base class if F0 cannot be called with the given
+ // arguments. In this case the base class will successively try operator()
+ // of all F... .
template<class... Args,
std::enable_if_t< not Std::is_callable<F0(Args&&...)>::value, int> = 0>
decltype(auto) operator()(Args&&... args)
@@ -121,6 +127,8 @@ namespace Impl {
F0(std::forward<FF0>(f0))
{}
+ // Forward to operator() of F0. If it cannot be called with
+ // the given arguments a static assertion will fail.
template<class... Args>
decltype(auto) operator()(Args&&... args)
{
--
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