How Not to Program in C++

Starting Out on the Wrong Foot 21

38

39 if (in_file.bad())

40 {

41 std::cerr <<

42 "Error: Unable to open input file\n";

43 exit (8);

44 }

45

46 if (out_file.bad())

47 {

48 std::cerr <<

49 "Error: Unable to open output file\n";

50 exit (8);

51 }

52

53 while (! in_file.eof())

54 {

55 // The original program output

56 // a block header here

57 send_block(in_file, out_file);

58 // The original program output a block

59 // trailer here. It also checked for

60 // a response and resent the block

61 // on error

62 }

63 return (0);

64 }

(Next Hint 183. Answer 65.)

One system administrator makes a habit of announcing that an upgrade

has been installed at least two weeks before