namespaces - C++ "::" without class name -

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• scope resolution operator without scope 6 answers

i came across following code structure in c++:

uint32_t aclass::action(....) { ..       status = ::action(...); .. } 

i not sure ::action() means. class belongs to? note: argument list of ::action(...) different aclass::action(...).

the leading :: means action here refers non-member function in global namespace, instead of referring aclass::action in current namespace.