nullptr
is a C++11 keyword (no different to if
, public
, true
, void
, etc.), so namespaces don't apply.
Why isn't 'nullptr' in the 'std' namespace?
题
It seems that nullptr
is declared in the default global namespace. Wouldn't it make sense for it to be in the std
namespace?
解决方案
其他提示
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.
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