void b_main_sink(FILE * * data_ptr);void _main(){FILE * data;data=NULL;data=fopen("file.txt", "w+");b_main_sink(&data);}void b_main_sink(FILE * * data_ptr){FILE * data=*data_ptr;fclose(data);}
void b_main_sink(FILE * * data);static void main(){FILE * data;data=NULL;data=fopen("file.txt", "w+");b_main_sink(&data);}void b_main_sink(FILE * * data_ptr){FILE * data=*data_ptr;if (data!=NULL){fclose(data);}}