🚀 go-pugleaf

Thanks, it all makes sense now.

Shannon

Thomas Maeder [TeamB] wrote:

> Shannon Peterson <speterson@ae-solutions.com> writes:
> 
> 
>>AnsiString mystring = ::func(stuff() + "string");
>>
>>all over the place and I was wondering if the :: is just allocating
>>space for data returned by the function call?
> 
> 
> Not at all.
> 
> 
> The expression
> 
> func("string")
> 
> means that a function named func() is to be called, and "string" is to
> be passed as argument.
> 
> 
> This sounds simple, but it's not. Because in C++, we have
> overloading.
> 
> The compiler thus first has to look for functions named func in a
> sequence of namespaces. As soon as one or more functions named func
> have been found in a namespace, this search stops. Among the functions
> found, those that can't take "string" as an argument are discarded
> from the candidate functions. If this process ends up with exactly one
> function, that function is called.
> 
> Prefixing func with :: changes the sequence of namespace where the
> search for func is performed: func() is only looked for the global
> namespace.
> 
> 
> 
>>is it the same as void::Func()?
> 
> 
> No.
> 
> void::Func()
> 
> is a sytax error, while
> 
> AnsiString mystring = ::func(stuff() + "string");
> 
> is syntactically correct.