c++-concepts

问题 I wanted to create a deep_flatten function template that would produce a range of elements that are deeply join ed. For example, if we take into account only nested std::vector s, I can have: template <typename T> struct is_vector : public std::false_type { }; template <typename T, typename A> struct is_vector<std::vector<T, A>> : public std::true_type { }; template <typename T> auto deepFlatten(const std::vector<std::vector<T>>& vec) { using namespace std::ranges; if constexpr (is_vector<T>:

问题 The following code attempts to partially specialize a class using a concept and add a method to the specialization, but it is rejected by clang 11.0.0: #include <concepts> template <typename T> // note: previous template declaration is here struct S {}; template <std::integral T> struct S<T> { void f(); }; template <std::integral T> // error: type constraint differs in template redeclaration void S<T>::f() { } clang gives the error message: <source>:14:16: error: type constraint differs in

来源： https://stackoverflow.com/questions/53970756/new-iterator-requirements

来源： https://stackoverflow.com/questions/53970756/new-iterator-requirements

来源： https://stackoverflow.com/questions/59973364/c-partial-concept-id-what-is-the-reason-for-the-explicit-template-specificati

来源： https://stackoverflow.com/questions/63541153/why-is-const-char-a-better-match-for-stdrangesrange-than-for-an-explicit

来源： https://stackoverflow.com/questions/40332980/c-concepts-lite-and-type-alias-declaration

来源： https://stackoverflow.com/questions/40332980/c-concepts-lite-and-type-alias-declaration

来源： https://stackoverflow.com/questions/40332980/c-concepts-lite-and-type-alias-declaration

来源： https://stackoverflow.com/questions/40332980/c-concepts-lite-and-type-alias-declaration