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some update.

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This commit is contained in:
ykiko
2024-08-09 13:43:54 +08:00
parent ac1a6b47a1
commit 75cb74ca78
12 changed files with 680 additions and 153 deletions
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82
main.cpp
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@@ -74,11 +74,17 @@ struct B {
};
};
template <typename V1, typename V2>
struct Test {
using result = typename B<V1>::template rebind<V2>::other;
};
// #include <vector>
template <typename V1, typename V2>
struct Test {
// using result = typename std::_Vector_base<V, std::allocator<V>>::_Tp_alloc_type;
// using result = typename __gnu_cxx::__alloc_traits<std::allocator<V>>::template rebind<V>::other;
// using result = typename __gnu_cxx::__alloc_traits<std::allocator<V>>::template
// rebind<V>::other;
using result = typename B<V1>::template rebind<V2>::other;
};
@@ -105,24 +111,64 @@ X<type_list<int>>::type x;
#elif 1
// #include <bits/allocator.h>
// #include <vector>
//
// template <typename V>
// struct Test {
// // using type = typename X<X<N>>::type;
// // using result = typename std::_Vector_base<U1, std::allocator<U1>>::_Tp_alloc_type;
// // using result = typename __gnu_cxx::__alloc_traits<std::allocator<V>>::template rebind<V>::other;
// // using result = std::allocator_traits<std::allocator<V>>::template rebind_alloc<V>;
// using result = std::__allocator_traits_base::template __rebind<std::allocator<V>, V>::type;
// // using result = std::vector<U1>::reference;
// // using type = typename X<N>::template Y<U>::type2;
// // using result = typename A<U1>::template B<U2>::template C<U3>::type;
// // using type = decltype(A<U1>::type::template f<int>());
// };
//
// std::__allocator_traits_base::template __rebind<std::allocator<int>, int>::type x;
#include <bits/allocator.h>
#include <vector>
// For a specialization `SomeTemplate<T, Args...>` and a type `U` the member
// `type` is `SomeTemplate<U, Args...>`, otherwise there is no member `type`.
template <typename T, typename U>
struct replace_first_arg {};
template <template <typename, typename...> class SomeTemplate,
typename U,
typename T,
typename... Types>
struct replace_first_arg<SomeTemplate<T, Types...>, U> {
using type = SomeTemplate<U, Types...>;
};
struct __allocator_traits_base {
template <typename T, typename U, typename = void>
struct __rebind : replace_first_arg<T, U> {};
template <typename T, typename U>
struct __rebind<T, U, std::void_t<typename T::template rebind<U>::other>> {
using type = typename T::template rebind<U>::other;
};
};
template <typename V>
struct Test {
// using type = typename X<X<N>>::type;
// using result = typename std::_Vector_base<U1, std::allocator<U1>>::_Tp_alloc_type;
// using result = typename __gnu_cxx::__alloc_traits<std::allocator<V>>::template
// rebind<V>::other;
// using result = std::allocator_traits<std::allocator<V>>::template rebind_alloc<V>;
using result = std::__allocator_traits_base::template __rebind<std::allocator<V>, V>::type;
// using result = std::vector<U1>::reference;
// using type = typename X<N>::template Y<U>::type2;
// using result = typename A<U1>::template B<U2>::template C<U3>::type;
// using type = decltype(A<U1>::type::template f<int>());
};
::__allocator_traits_base::template __rebind<std::allocator<int>, int>::type z;
#endif
// int x = 1 + 2;
template <typename... Ts>
struct type_list {};
#include <cstdarg>
__attribute__((__format__(__printf__, 2, 3))) void vfprintf2(FILE* file, const char* format, ...) {
va_list args;
va_start(args, format);
vfprintf(file, format, args);
va_end(args);
}
int main() {
FILE* file;
vfprintf2(file, "%d", 1.1f);
}