std::__addressof(__source._M_access<_Functor>())/* have stored a pointer */:__source._M...
今天我们来说一说c++中std::function、std::bind、lambda等用法,这些用法使函数调用更加方便。...下面是 std::function 的主要特点和用法:函数包装器:std::function 可以包装各种可调用对象,包括函数、函数指针、成员函数指针、lambda 表达式等。...灵活性:s...
Class template std::function is a general-purpose polymorphic function wrapper. Instances of std::function can store, copy, and invoke any Callable target -- functions, lambda expressions, bind expressions, or other function objects, as well as pointers to member functions and pointers to data me...
:_M_functor中取出可调用目标实体static_Functor*_M_get_pointer(const_Any_data&__source){const_Fun...
pointer to object or to function lvalue reference to object or to function pointer to member object or to member function std::nullptr_t (since C++11) wrapper<f>() 中f是一个变量,它的值是运行期才能确定的。所以模板没办法编译通过,总不能等到运行时再Instantiate出一个wrapper<f>函数,让其中的i...
invoke内部先判断第一个函数指针是否meet std::is_member_function_pointer requirement, 生成对应的__inv...
Invoking a pointer to a non-static data member is the same as dereferencing the pointer, when applied to the second argument. The statement std::invoke(&S::do_something, s); is therefore equivalent to s.do_something; which, despite its name, does nothing: It accesses the member and thro...
bool&) block_pointer) + 901 6 dyld 0x113aee59e invocation function for block in dyld4::Loader::forEachPath(Diagnostics&, dyld4::RuntimeState&, char const*, dyld4::Loader::LoadOptions const&, void (char const*, dyld4::ProcessConfig::PathOverrides::Type, bool&) block_pointer) + 134 ...
15: Compiling c10/core/Scalar.cpp failed: (Exit 1): gcc failed: error executing command (from target //c10/core:base) /opt/cache/bin/gcc -U_FORTIFY_SOURCE -fstack-protector -Wall -Wunused-but-set-parameter -Wno-free-nonheap-object -fno-omit-frame-pointer '-std=c++11' -MD -MF .....
const* use_addressof(int const* && it) noexcept { return std::addressof(*it); } constexpr int const* use_ampersand(int const* && it) noexcept { return &(*it); } constexpr int c_n = 6; constexpr int const* c_pn_use_addressof = use_addressof(&c_n); // ...