Mixing
Multiple templated variadic templates
0
I would like to use two templated parameter packs but I do not know how to do it. I read a lot of other StackOverflow posts but not one with templated parameter pack.
template < template < unsigned int > class... EntityList >
struct Entities{};
template < template < unsigned int > class... EntityBuilderList >
struct EntityBuilders{};
template < unsigned int dim, template < unsigned int > class... T >
class CompleteBuilder;
template < unsigned int dim, template < unsigned int > class... EntityList,
template < unsigned int > class... EntityBuilderList >
class CompleteBuilder< dim, Entities< EntityList...>, EntityBuilders< EntityBuilderList...> >
: public EntityBuilderList< dim >...
{};
Then, I would like to use it like CompleteBuilder< 3, Entities< A, B, C >, EntityBuilders< Ab, Bb, Cb > > builder. But I have this error:
error: type/value mismatch at argument 2 in template parameter list for ‘template<unsigned int dim, template<unsigned int <anonymous> > class ... T> class CompleteBuilder’
class CompleteBuilder< dim, Entities< EntityList...>, EntityBuilders< EntityBuilderList...> >
^
note: expected a class template, got ‘Entities<EntityList ...>’
Thanks for your help
c++ c++11 variadic-templates
edited Jan 2 at 16:48
HolyBlackCat
17.1k33568
asked Jan 2 at 16:35
ABotellaABotella
145
add a comment |
0
I would like to use two templated parameter packs but I do not know how to do it. I read a lot of other StackOverflow posts but not one with templated parameter pack.
template < template < unsigned int > class... EntityList >
struct Entities{};
template < template < unsigned int > class... EntityBuilderList >
struct EntityBuilders{};
template < unsigned int dim, template < unsigned int > class... T >
class CompleteBuilder;
template < unsigned int dim, template < unsigned int > class... EntityList,
template < unsigned int > class... EntityBuilderList >
class CompleteBuilder< dim, Entities< EntityList...>, EntityBuilders< EntityBuilderList...> >
: public EntityBuilderList< dim >...
{};
Then, I would like to use it like CompleteBuilder< 3, Entities< A, B, C >, EntityBuilders< Ab, Bb, Cb > > builder. But I have this error:
error: type/value mismatch at argument 2 in template parameter list for ‘template<unsigned int dim, template<unsigned int <anonymous> > class ... T> class CompleteBuilder’
class CompleteBuilder< dim, Entities< EntityList...>, EntityBuilders< EntityBuilderList...> >
^
note: expected a class template, got ‘Entities<EntityList ...>’
Thanks for your help
c++ c++11 variadic-templates
edited Jan 2 at 16:48
HolyBlackCat
17.1k33568
asked Jan 2 at 16:35
ABotellaABotella
145
add a comment |
0
0
0
I would like to use two templated parameter packs but I do not know how to do it. I read a lot of other StackOverflow posts but not one with templated parameter pack.
template < template < unsigned int > class... EntityList >
struct Entities{};
template < template < unsigned int > class... EntityBuilderList >
struct EntityBuilders{};
template < unsigned int dim, template < unsigned int > class... T >
class CompleteBuilder;
template < unsigned int dim, template < unsigned int > class... EntityList,
template < unsigned int > class... EntityBuilderList >
class CompleteBuilder< dim, Entities< EntityList...>, EntityBuilders< EntityBuilderList...> >
: public EntityBuilderList< dim >...
{};
Then, I would like to use it like CompleteBuilder< 3, Entities< A, B, C >, EntityBuilders< Ab, Bb, Cb > > builder. But I have this error:
error: type/value mismatch at argument 2 in template parameter list for ‘template<unsigned int dim, template<unsigned int <anonymous> > class ... T> class CompleteBuilder’
class CompleteBuilder< dim, Entities< EntityList...>, EntityBuilders< EntityBuilderList...> >
^
note: expected a class template, got ‘Entities<EntityList ...>’
Thanks for your help
c++ c++11 variadic-templates
edited Jan 2 at 16:48
HolyBlackCat
17.1k33568
asked Jan 2 at 16:35
ABotellaABotella
145
I would like to use two templated parameter packs but I do not know how to do it. I read a lot of other StackOverflow posts but not one with templated parameter pack.
template < template < unsigned int > class... EntityList >
struct Entities{};
template < template < unsigned int > class... EntityBuilderList >
struct EntityBuilders{};
template < unsigned int dim, template < unsigned int > class... T >
class CompleteBuilder;
template < unsigned int dim, template < unsigned int > class... EntityList,
template < unsigned int > class... EntityBuilderList >
class CompleteBuilder< dim, Entities< EntityList...>, EntityBuilders< EntityBuilderList...> >
: public EntityBuilderList< dim >...
{};
Then, I would like to use it like CompleteBuilder< 3, Entities< A, B, C >, EntityBuilders< Ab, Bb, Cb > > builder. But I have this error:
error: type/value mismatch at argument 2 in template parameter list for ‘template<unsigned int dim, template<unsigned int <anonymous> > class ... T> class CompleteBuilder’
class CompleteBuilder< dim, Entities< EntityList...>, EntityBuilders< EntityBuilderList...> >
^
note: expected a class template, got ‘Entities<EntityList ...>’
Thanks for your help
c++ c++11 variadic-templates
c++ c++11 variadic-templates
edited Jan 2 at 16:48
HolyBlackCat
17.1k33568
asked Jan 2 at 16:35
ABotellaABotella
145
edited Jan 2 at 16:48
HolyBlackCat
17.1k33568
asked Jan 2 at 16:35
ABotellaABotella
145
edited Jan 2 at 16:48
HolyBlackCat
17.1k33568
edited Jan 2 at 16:48
HolyBlackCat
17.1k33568
edited Jan 2 at 16:48
HolyBlackCat
17.1k33568
17.1k33568
asked Jan 2 at 16:35
ABotellaABotella
145
asked Jan 2 at 16:35
ABotellaABotella
145
asked Jan 2 at 16:35
ABotellaABotella
145
145
add a comment |
add a comment |
1 Answer
1
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0
Based on the specialization you have of CompleteBuilder; your primary template needs to be defined like this
template <unsigned int dim, class... T>
class CompleteBuilder;
answered Jan 2 at 16:46
JansJans
9,11422635
Thanks! Can this class be a friend from another one?class Foo{template <unsigned int, class...> friend class CompleteBuilder};
– ABotella
Jan 2 at 17:37
@ABotella - yes, it can
– Jans
Jan 2 at 17:40
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
Based on the specialization you have of CompleteBuilder; your primary template needs to be defined like this
template <unsigned int dim, class... T>
class CompleteBuilder;
answered Jan 2 at 16:46
JansJans
9,11422635
Thanks! Can this class be a friend from another one?class Foo{template <unsigned int, class...> friend class CompleteBuilder};
– ABotella
Jan 2 at 17:37
@ABotella - yes, it can
– Jans
Jan 2 at 17:40
add a comment |
0
Based on the specialization you have of CompleteBuilder; your primary template needs to be defined like this
template <unsigned int dim, class... T>
class CompleteBuilder;
answered Jan 2 at 16:46
JansJans
9,11422635
Thanks! Can this class be a friend from another one?class Foo{template <unsigned int, class...> friend class CompleteBuilder};
– ABotella
Jan 2 at 17:37
@ABotella - yes, it can
– Jans
Jan 2 at 17:40
add a comment |
0
0
0
Based on the specialization you have of CompleteBuilder; your primary template needs to be defined like this
template <unsigned int dim, class... T>
class CompleteBuilder;
answered Jan 2 at 16:46
JansJans
9,11422635
Based on the specialization you have of CompleteBuilder; your primary template needs to be defined like this
template <unsigned int dim, class... T>
class CompleteBuilder;
answered Jan 2 at 16:46
JansJans
9,11422635
answered Jan 2 at 16:46
JansJans
9,11422635
answered Jan 2 at 16:46
JansJans
9,11422635
answered Jan 2 at 16:46
JansJans
9,11422635
9,11422635
Thanks! Can this class be a friend from another one?class Foo{template <unsigned int, class...> friend class CompleteBuilder};
– ABotella
Jan 2 at 17:37
@ABotella - yes, it can
– Jans
Jan 2 at 17:40
add a comment |
Thanks! Can this class be a friend from another one?class Foo{template <unsigned int, class...> friend class CompleteBuilder};
– ABotella
Jan 2 at 17:37
@ABotella - yes, it can
– Jans
Jan 2 at 17:40
Thanks! Can this class be a friend from another one?
class Foo{template <unsigned int, class...> friend class CompleteBuilder};– ABotella
Jan 2 at 17:37
Thanks! Can this class be a friend from another one?
class Foo{template <unsigned int, class...> friend class CompleteBuilder};– ABotella
Jan 2 at 17:37
@ABotella - yes, it can
– Jans
Jan 2 at 17:40
@ABotella - yes, it can
– Jans
Jan 2 at 17:40
add a comment |
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