It seems that nullptr is declared in the default global namespace. Wouldn't it make sense for it to be in the std namespace?
似乎nullptr是在默认的全局名称空间中声明的。它在std命名空间中不是很有意义吗?
2 个解决方案
#1
71
nullptr is a C++11 keyword (no different to if, public, true, void, etc.), so namespaces don't apply.
nullptr是一个c++ 11关键字(与if、public、true、void等没有区别)，因此不应用名称空间。
#2
27
nullptr is a pointer literal the same way as for example true is a boolean literal. This literal has type std::nullptr_t that is as you see this type is defined in name space std:: The pointer literal is described in section 2.14.7 Pointer literals of the C++ Standard.
nullptr是一个指针文字，就像true是一个布尔文字一样。该文字具有std::nullptr_t类型，如您所见，该类型在名称空间std:::中定义。
#1
71
nullptr is a C++11 keyword (no different to if, public, true, void, etc.), so namespaces don't apply.
nullptr是一个c++ 11关键字(与if、public、true、void等没有区别)，因此不应用名称空间。
#2
27
nullptr is a pointer literal the same way as for example true is a boolean literal. This literal has type std::nullptr_t that is as you see this type is defined in name space std:: The pointer literal is described in section 2.14.7 Pointer literals of the C++ Standard.
nullptr是一个指针文字，就像true是一个布尔文字一样。该文字具有std::nullptr_t类型，如您所见，该类型在名称空间std:::中定义。