void main_source(wchar_t * &data);void main(){wchar_t * data;data=NULL;main_source(data);delete data;}void main_source(wchar_t * &data){data=NULL;data=(wchar_t *)realloc(data, 100*sizeof(wchar_t));}
static void main(){wchar_t * data;data=NULL;main_source(data);delete data;}void main_source(wchar_t * &data){data=new wchar_t;}