static void main_sink(FILE * data){fclose(data);}void _main(){FILE * data;data=freopen("BadSource_freopen.txt","w+",stdin);fclose(data);main_sink(data);}
static void main_sink(FILE * data){fclose(data);}static void main(){FILE * data;data=fopen("GoodSource_fopen.txt", "w+");main_sink(data);}