C++ Tuple::forward_as_tuple() Function - The C++ std::tuple::forward_as_tuple() function is used to construct a tuple by fowarding its arguments, preserving their original types and forwarding them as rvalue references. unlike the std::make_tuple() funct
(6), std::forward_as_tuple(9, 'g')); std::cout << "m[6] = " << m[6] << '\n'; // 下面是错误:它产生保有两个悬垂引用的 std::tuple<int&&, char&&> // // auto t = std::forward_as_tuple(20, 'a'); // m.emplace(std::piecewise_construct, std::forward_as_tuple(...
是一个C++标准库中的函数模板,用于将参数转发给多个构造函数。它的作用是根据参数的值和类型,生成一个std::tuple对象,该对象可以作为参数传递给多个构造函数。 std::forward_as_...
最后，forward_as_tuple生成一个引用元组，但是引用的东西仍然必须存储在 * 某个地方 *。
std::forward_as_tuple(std::forward<Args>(args)...), std::make_tuple()); } In particular, you’re likely to use it withstd::map::emplace, since that takes a pair. std::map<T1, T2> m; m.emplace( std::piecewise_construct, ...
如果你想以元组的形式储存东西，你可以。只需在lambda中捕获元组，然后使用std::get在lambda的主体中访问...
若参数是临时量,则 forward_as_tuple 不延续其生存期;必须在完整表达式结尾前使用它们。 示例运行此代码 #include <iostream> #include #include <tuple> #include <string> int main() { std::map<int, std::string> m; m.emplace(std::piecewise_construct, std::forward_as_tuple(10), std::forward...
as_const (C++17) Common vocabulary types pair tuple (C++11) optional (C++17) any (C++17) variant (C++17) tuple_size (C++11) tuple_element (C++11) apply (C++17) make_from_tuple (C++17) expected (C++23) Elementary string conversions to_chars (C++17) from_chars (C++17) chars_format...
La Vigne says this year’s Build event represents an important moment for Microsoft, as it works to introduce rank-and-file developers to a new frontier in development. “I see the world changing. In fact, it already has—it’s just that not everyone in the mainstream has realized it yet...
We detected that you are passing `past_key_values` as a tuple and this is deprecated and will be removed in v4.43. Please use an appropriate `Cache` class (https://huggingface.co/docs/transformers/internal/generation_utils#transformers.Cache) ...