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Fixed another compiler error that could happen with the forwarding constructor.

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This commit is contained in:
Davis King 2016-04-08 07:18:15 -04:00
parent c5af788e7a
commit 545fe6c981
1 changed files with 8 additions and 4 deletions
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12
dlib/dnn/core.h
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@ -590,20 +590,24 @@ namespace dlib
}
template <typename T, typename ...U>
struct details_constructable_from
struct disable_forwarding_constr
{
const static bool value = std::is_constructible<LAYER_DETAILS,T>::value;
};
template <typename ...T, typename ...U>
struct details_constructable_from<std::tuple<T...>,U...>
struct disable_forwarding_constr<std::tuple<T...>,U...>
{
const static bool value = true;
};
template <typename ...T>
struct disable_forwarding_constr<add_layer<T...>>
{
// just say true so that the constructor below never activates for tuple types.
const static bool value = true;
};
template <
typename ...T,
typename = typename std::enable_if<!details_constructable_from<T...>::value>::type
typename = typename std::enable_if<!disable_forwarding_constr<typename std::remove_reference<T>::type...>::value>::type
>
add_layer(
T&& ...args