twointsclass * main_source(twointsclass * data);void main(){twointsclass * data;data=NULL;data=main_source(data);printIntLine(data[0].a);}twointsclass * main_source(twointsclass * data){data=NULL;return data;}
twointsclass * main_source(twointsclass * data);static void main(){twointsclass * data;data=NULL;data=main_source(data);printIntLine(data[0].a);}twointsclass * main_source(twointsclass * data){{twointsclass * tmp=new twointsclass;tmp->a=0;tmp->b=0;data=tmp;}return data;}