1 1.1 christos The following is a demonstration of the guess.d script, 2 1.1 christos 3 1.1 christos 4 1.1 christos guess.d is a guessing game written in DTrace. It goes like this, 5 1.1 christos 6 1.1 christos # ./guess.d 7 1.1 christos guess.d - Guess a number between 1 and 100 8 1.1 christos 9 1.1 christos Enter guess 1: 50 10 1.1 christos Lower... 11 1.1 christos Enter guess 2: 25 12 1.1 christos Higher... 13 1.1 christos Enter guess 3: 37 14 1.1 christos Higher... 15 1.1 christos Enter guess 4: 44 16 1.1 christos Higher... 17 1.1 christos Enter guess 5: 48 18 1.1 christos Lower... 19 1.1 christos Enter guess 6: 46 20 1.1 christos Lower... 21 1.1 christos Enter guess 7: 45 22 1.1 christos Correct! That took 7 guesses. 23 1.1 christos 24 1.1 christos Please enter your name: Brendan Gregg 25 1.1 christos 26 1.1 christos Previous high scores, 27 1.1 christos Fred Nurk 7 28 1.1 christos Brendan Gregg 7 29 1.1 christos 30 1.1 christos It was written as a demonstration of the same code written in dozens of 31 1.1 christos languages. It makes a good demonstration, as it covers integer and string 32 1.1 christos variables, conditional statements, loops, keyboard input, screen output, 33 1.1 christos and file input and output. 34 1.1 christos 35 1.1 christos Written in DTrace however, is not such a good demonstration! DTrace doesn't 36 1.1 christos have loops (it doesn't really need them either) which made the code a 37 1.1 christos little odd. DTrace also doesn't have keyboard input... So this script is 38 1.1 christos somewhat amusing as an example, but not terribly useful. 39 1.1 christos 40
Indexes created Fri Apr 24 00:22:58 UTC 2026