• 0 Posts
  • 5 Comments
Joined 1 year ago
cake
Cake day: June 25th, 2023

help-circle


  • __LINE__ returns the line of code its on, and % 10 means “remainder 10.” Examples:

    1 % 10 == 1
    ...
    8 % 10 == 8
    9 % 10 == 9
    10 % 10 == 0 <-- loops back to 0
    11 % 10 == 1
    12 % 10 == 2
    ...
    19 % 10 == 9
    20 % 10 == 0
    21 % 10 == 1
    

    In code, 0 means false and 1 (and 2, 3, 4, …) means true.

    So, if on line 10, you say:

    int dont_delete_database = true;
    

    then it will expand to:

    int dont_delete_database = ( 10 % 10 );
    // 10 % 10 == 0 which means false
    // database dies...
    

    if you add a line before it, so that the code moves to line 11, then suddenly it works:

    // THIS COMMENT PREVENTS DATABASE FROM DYING
    int dont_delete_database = ( 11 % 10 );
    // 11 % 10 == 1, which means true