Wierd pointer construct

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You should really get a C/C++ Book and learn your language, before you start programming.

-> is the dereferencing operator for Pointers. When you have a pointer gpspointer the expression (*gpspointer) returns the object gpspointer points to. (*gpspointer).begin(baud) is the same as gpspointer->begin(baud). It just increases readability.

Your code will recurse only if gpspointer=this.

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