20namespace seqan3::detail
28template <
typename source_type,
template <
typename ...>
typename target_template>
29struct transfer_template_args_onto
57template <
template <
typename ...>
typename source_template,
58 template <
typename ...>
typename target_template,
59 typename ...source_arg_types>
63 typename target_template<source_arg_types...>;
66struct transfer_template_args_onto<source_template<source_arg_types...>, target_template>
69 using type = target_template<source_arg_types...>;
76template <
typename source_type,
template <
typename ...>
typename target_template>
77using transfer_template_args_onto_t =
typename transfer_template_args_onto<source_type, target_template>::type;
84template <
typename source_type,
template <
auto ...>
typename target_template>
85struct transfer_template_vargs_onto
106template <
template <
auto ...>
typename source_template,
107 template <
auto ...>
typename target_template,
108 auto ... source_varg_types>
112 typename target_template<source_varg_types...>;
115struct transfer_template_vargs_onto<source_template<source_varg_types...>, target_template>
118 using type = target_template<source_varg_types...>;
125template <
typename source_type,
template <
auto ...>
typename target_template>
126using transfer_template_vargs_onto_t =
typename transfer_template_vargs_onto<source_type, target_template>::type;
144template <
typename source_t,
template <
typename ...>
typename target_template>
149template <
typename source_t,
template <
typename ...>
typename target_template>
151 requires (!std::same_as<transformation_trait_or_t<transfer_template_args_onto<source_t, target_template>,
void>,
154struct is_type_specialisation_of<source_t, target_template> :
155 std::is_same<source_t, transfer_template_args_onto_t<source_t, target_template>>
163template <
typename source_t,
template <
typename ...>
typename target_template>
164inline constexpr bool is_type_specialisation_of_v = is_type_specialisation_of<source_t, target_template>::value;
171template <
typename source_t,
template <
auto ...>
typename target_template>
185template <
typename source_t,
template <
auto ...>
typename target_template>
187 requires (!std::same_as<transformation_trait_or_t<transfer_template_vargs_onto<source_t, target_template>,
void>,
190struct is_value_specialisation_of<source_t, target_template> :
191 std::is_same<source_t, transfer_template_vargs_onto_t<source_t, target_template>>
199template <
typename source_t,
template <
auto ...>
typename target_template>
210template <
typename fallback_t,
template <
typename ...>
typename templ_t,
typename ...spec_t>
211struct valid_template_spec_or
214 using type = fallback_t;
218template <
typename fallback_t,
template <
typename ...>
typename templ_t,
typename ...spec_t>
220 requires requires {
typename templ_t<spec_t...>; }
222struct valid_template_spec_or<fallback_t, templ_t, spec_t...>
225 using type = templ_t<spec_t...>;
235template <
typename fallback_t,
template <
typename ...>
typename templ_t,
typename ...spec_t>
236using valid_template_spec_or_t =
typename valid_template_spec_or<fallback_t, templ_t, spec_t...>::type;
257template <
typename mytype,
template <
typename ...>
typename type_template>
258SEQAN3_CONCEPT template_specialisation_of = is_type_specialisation_of_v<mytype, type_template>;
272 transformation_trait_or_t<t, void>,
The <concepts> header from C++20's standard library.
constexpr bool is_value_specialisation_of_v
Helper variable template for seqan3::detail::is_value_specialisation_of (unary_type_trait shortcut).
Definition: template_inspection.hpp:200