2 colons and no identifier infront ... wtf?

[billythekid]

Hi, what does the two consecutive colons in the text with bold letters mean?

static void func ()
{
}

ctor::ctor ()
  : member_1 (),
    member_2 (::func ()),
    member_3 ()
{
}

Is this a standard c++ syntax?

[billythekid]

Ok I got the answer again:
http://en.wikipedia.org/wiki/Scope_resolution_operator

By the way writing in forums most of the time helps me to find myself the answare before someone to reply to my topic.

[Peter87]

Yes it is standard syntax and it means that func is in the global namespace. This could be useful if the class also has a function named func.