| 01:17.03 | *** join/#utah han_solo (~fugalh@byu074888wks.rn.byu.edu) |
| 01:58.03 | *** join/#utah kryptik (Kryptik@208.187.113.117) |
| 04:14.19 | *** join/#utah bbeattie (~bbeattie@cpe-66-1-180-69.ut.sprintbbd.net) |
| 05:41.36 | Bonez39 | cd /usr/share/doc |
| 05:41.37 | Bonez39 | ls |
| 05:41.40 | Bonez39 | oops |
| 05:41.50 | Jayce^ | gotta hate that :) |
| 05:42.18 | Bonez39 | looking back, Hans advised that I check the size of that directory... |
| 05:42.36 | Bonez39 | it's 96M... |
| 05:42.59 | Bonez39 | how do I know how to prune stuff from there? are they all documents..help files, etc? |
| 05:44.17 | Jayce^ | hrmm.. might be able to pull certain document packages out.. not sure on deb.. |
| 05:44.29 | Jayce^ | but yeah, look for files related to programs you dont' use.. |
| 05:44.38 | Bonez39 | ok...... |
| 05:49.24 | brailsmt | Bonez39: i wouldn't be too hesitant to delete stuff from there though... almost all pkgs have documentation on the web... |
| 06:08.46 | *** join/#utah Bradipo_ (bradipo@sicilia.bradfords.org) |
| 06:10.18 | Bonez39 | brailsmt: if at some point I have things rearranged..and want to add that stuff back in..it's not too difficult is it? |
| 06:10.35 | brailsmt | you could just reinstall the pkg... |
| 06:10.57 | Bonez39 | that's true....good idea |
| 06:26.48 | brailsmt | proof that every tool has its uses... i just converted a 10+ line ruby script to a 4 line bash script :) |
| 06:27.03 | brailsmt | much as I love ruby, bash is better for messing with files on the fs... |
| 06:27.25 | Bradipo_ | Nice. |
| 06:30.46 | brailsmt | of course one of those lines is sed, which does a lot of stuff for you that i did in ruby by myself... |
| 06:43.04 | *** join/#utah Mecworks (marc@208.186.182.174) |
| 06:44.06 | *** join/#utah kryptik (Kryptik@208.187.113.38) |
| 08:15.48 | *** join/#utah TimRiker (timr@rikers.org) |
| 08:15.48 | *** mode/#Utah [+o TimRiker] by ChanServ |
| 08:27.52 | TimRiker | UUG tonight? how was it? net access? ;-) |
| 09:07.10 | *** join/#utah levi_ (~levi@ash.lnxi.com) |
| 10:05.35 | *** join/#utah brailsmt_ (~michael@12-254-226-160.client.attbi.com) |
| 13:25.39 | *** join/#utah han_solo (~fugalh@trident.cs.byu.edu) |
| 13:45.59 | han_solo | morninn |
| 15:56.44 | *** join/#utah han_solo (~solo@128.187.175.16) |
| 15:57.44 | han_solo | brailsmt: you there? |
| 16:19.48 | *** join/#utah neybar (~jalance@dsl233.sisna.com) |
| 16:57.38 | *** join/#utah Callan (Callan@pD90069B3.dip.t-dialin.net) |
| 16:59.05 | *** part/#utah Callan (Callan@pD90069B3.dip.t-dialin.net) |
| 17:37.54 | *** join/#utah kryptik (Kryptik@208.187.113.124) |
| 17:46.47 | Bonez39 | anyone using gnome know how to get a screensaver going? |
| 17:48.20 | kryptik | I think you can right click on the desktop and select desktop settings or something similar from the menu. |
| 17:57.50 | *** join/#utah kryptik (Kryptik@208.187.113.124) |
| 18:25.20 | *** join/#utah kryptik[alt] (Kryptik@208.187.113.34) |
| 19:32.17 | *** join/#utah brailsmt_ (~michael@12-254-226-160.client.attbi.com) |
| 19:35.34 | levi_ | kryptik: Having fun? |
| 19:37.31 | kryptik | Heh, yea. At first I couldnt spell it right.. then I freaking went off on some tangent. But now I am done. |
| 19:39.43 | levi_ | Gotta be careful about those freaking tangents. They're much worse than regular tangents. Or sines. |
| 19:42.07 | Jayce^ | close to cosines though.. |
| 19:42.17 | kryptik | Heh. geeks :) |
| 19:44.36 | levi_ | Hey, we're hanging out on an irc channel. Of course we're geeks. |
| 19:45.00 | kryptik | Hah, your right about that. |
| 19:47.00 | brailsmt_ | linux user == geek |
| 19:47.02 | brailsmt_ | :) |
| 19:47.17 | brailsmt_ | linux user on irc == geek of geeks |
| 19:47.22 | brailsmt_ | :) |
| 19:52.41 | kryptik | Some one want to give me an example of a cpp program that uses 'switch'? |
| 19:54.03 | brailsmt_ | switch(argc) { |
| 19:54.08 | brailsmt_ | case 0: |
| 19:54.14 | brailsmt_ | printf("error\n"); |
| 19:54.18 | brailsmt_ | case 1: |
| 19:54.32 | brailsmt_ | printf("SIGSEGV\n") |
| 19:54.43 | brailsmt_ | exit(EXIT_FAILURE); |
| 19:54.53 | brailsmt_ | } |
| 19:55.27 | kryptik | Thanks bud |
| 19:55.30 | brailsmt_ | NOTE: that does nothing usefule... :) |
| 19:55.35 | kryptik | Yea, I got that. |
| 20:03.22 | kryptik | Should this work? |
| 20:03.25 | kryptik | ------------------------------------ |
| 20:03.26 | kryptik | int main() |
| 20:03.27 | kryptik | { |
| 20:03.27 | kryptik | //DataType Listing |
| 20:03.27 | kryptik | string name; |
| 20:03.27 | kryptik | |
| 20:03.28 | kryptik | cin >> name; |
| 20:03.30 | kryptik | |
| 20:03.32 | kryptik | switch(name) |
| 20:03.34 | kryptik | { |
| 20:03.36 | kryptik | case "one": |
| 20:03.38 | kryptik | cout << "one"; |
| 20:03.40 | kryptik | case "two": |
| 20:03.42 | kryptik | cout << "you did not pick one"; |
| 20:03.44 | kryptik | } |
| 20:03.46 | kryptik | return 0; |
| 20:03.48 | kryptik | } |
| 20:03.50 | kryptik | ----------------------------------- |
| 20:08.27 | brailsmt_ | no |
| 20:08.51 | kryptik | Why not.. I cant seem to find a way to use it |
| 20:08.52 | brailsmt_ | switches will only work on integral types i think... |
| 20:09.06 | brailsmt_ | lemme change that... |
| 20:09.07 | kryptik | really? |
| 20:09.16 | brailsmt_ | i know that they do not work for strings |
| 20:09.34 | brailsmt_ | i am not sure if the work with floats/doubles |
| 20:09.40 | kryptik | So I must use else/if? |
| 20:09.49 | brailsmt_ | if you have a string, yes |
| 20:10.03 | brailsmt_ | you could do this though... |
| 20:10.16 | brailsmt_ | switch(name[0]) { |
| 20:10.22 | brailsmt_ | case 'o': |
| 20:10.27 | brailsmt_ | cout << "one"; |
| 20:10.32 | brailsmt_ | break; |
| 20:10.37 | brailsmt_ | case 't': |
| 20:10.54 | brailsmt_ | if(name[2] == 'w': |
| 20:11.00 | brailsmt_ | cout << 'two'; |
| 20:11.01 | brailsmt_ | else |
| 20:11.05 | brailsmt_ | cout << 'three'; |
| 20:11.10 | brailsmt_ | break; |
| 20:11.10 | kryptik | Ahh ok |
| 20:11.11 | brailsmt_ | } |
| 20:11.13 | kryptik | I see. |
| 20:11.40 | brailsmt_ | that wuickly gets complex though... |
| 20:11.45 | brailsmt_ | s/w/q |
| 20:12.29 | kryptik | Yea it would. |
| 20:13.37 | brailsmt_ | generally for strings, if/else is your best bet |
| 20:13.51 | brailsmt_ | if you are bent on using switches, though... |
| 20:14.13 | kryptik | Well I was just trying to learn how to use them.. thats all |
| 20:16.23 | brailsmt_ | though for your little example above you could do this.. |
| 20:16.30 | brailsmt_ | switch(name[0]) { |
| 20:16.34 | brailsmt_ | case 'o': |
| 20:16.45 | brailsmt_ | cout << "one"; |
| 20:16.48 | brailsmt_ | break; |
| 20:16.55 | brailsmt_ | default: |
| 20:17.11 | brailsmt_ | cout << "You did not pick 'one'."; |
| 20:17.12 | brailsmt_ | } |
| 20:17.32 | brailsmt_ | but that is still pretty loose... |
| 20:17.47 | kryptik | Hmm. |
| 20:18.22 | kryptik | Ok, note to self.. switch is for integral type and not strings. |
| 20:43.40 | Jayce^ | wow, switch does integrals... dang.. :) |
| 20:46.01 | kryptik | Heh. |
| 20:46.07 | kryptik | I sence sarcasm.. |
| 20:46.23 | Jayce^ | maybe just a little.. |
| 20:47.13 | kryptik | :) |
| 20:47.43 | brailsmt_ | kryptik: and switches are usually frowned upon anyway... |
| 20:48.04 | kryptik | Why is that |
| 20:48.07 | brailsmt_ | especially when your company is anal about cyclomatic complexity |
| 20:48.09 | kryptik | I hear good things about them |
| 20:48.44 | Jayce^ | it's all style, and what your company mandates as style.. |
| 20:49.08 | brailsmt_ | some ppl are deadset against ever using them... |
| 20:49.15 | kryptik | right.. but i dont do it for a company. |
| 20:49.19 | brailsmt_ | i am not, but i rarely use them anyway |
| 20:49.26 | Jayce^ | still not as deadset as most are against GOTO |
| 20:49.33 | kryptik | Heh |
| 20:49.39 | brailsmt_ | true, but just give it time... |
| 20:49.43 | kryptik | GOTO I thought that was basic syntax? |
| 20:49.59 | brailsmt_ | it is also *extremely* frowned upom |
| 20:50.04 | brailsmt_ | s/m/n |
| 20:50.12 | kryptik | Hmm. |
| 20:50.18 | kryptik | Assembly looks hard. |
| 20:50.36 | brailsmt_ | goto in asm -- there is no way around it... |
| 20:50.40 | Jayce^ | most languages have a form of goto, and there is logical use for them.. but really, in most cases you dont' want one.. |
| 20:50.49 | brailsmt_ | goto is nice at times |
| 20:51.16 | brailsmt_ | if used right, it can lead to cleaner, easier to understand code |
| 20:51.22 | Jayce^ | yes.. |
| 20:51.33 | Jayce^ | and if used wrong, it makes things worse.. |
| 20:51.48 | brailsmt_ | i think the problem was that too many ppl were using it poorly back when djikstra wrote his comments |
| 20:52.33 | kryptik | how would you use it in cpp |
| 20:52.42 | brailsmt_ | like gotos are nice to cleanup your memory in a C function... |
| 20:52.44 | kryptik | GOTO (function |
| 20:52.45 | kryptik | ) |
| 20:52.50 | brailsmt_ | kryptik: like this |
| 20:53.02 | brailsmt_ | void Class::foo() { |
| 20:53.18 | brailsmt_ | char * achar = new char[50]; |
| 20:53.43 | brailsmt_ | memset(achar, 0x00, 50); |
| 20:53.52 | brailsmt_ | if(some_global) |
| 20:53.58 | brailsmt_ | ... |
| 20:54.05 | brailsmt_ | return 0; |
| 20:54.06 | brailsmt_ | else |
| 20:54.08 | brailsmt_ | ... |
| 20:54.17 | brailsmt_ | return 1; |
| 20:54.21 | brailsmt_ | label: |
| 20:54.27 | brailsmt_ | delete achar: |
| 20:54.33 | brailsmt_ | return 0; |
| 20:54.36 | brailsmt_ | } |
| 20:54.40 | brailsmt_ | oops... |
| 20:55.04 | brailsmt_ | replace those returns with 'goto label;' |
| 20:55.20 | brailsmt_ | that is pretty contrived... |
| 20:55.22 | kryptik | hmm |
| 20:55.32 | kryptik | well I dont understand anything thats going on there |
| 20:56.17 | brailsmt_ | first you allocate 50 bytes of memory to achar, then you set it all to 0s, then you enter an if statment... |
| 20:57.04 | kryptik | right |
| 20:57.07 | brailsmt_ | then at the 'goto label' lines execution would jump to the label 'label' and deallocate the 50 bytes of memory... |
| 20:57.17 | brailsmt_ | then return |
| 20:57.26 | kryptik | Ahh ok |
| 20:58.02 | brailsmt_ | it is pretty contrived, but if you have deep if statements, using a goto can alleviate the need to duplicate cleanup code... |
| 20:58.19 | kryptik | right. |
| 20:58.21 | kryptik | Hmm. |
| 20:58.35 | brailsmt_ | but this is bad... |
| 20:58.35 | kryptik | Well, i will check it out |
| 20:58.38 | kryptik | ? |
| 20:58.40 | brailsmt_ | if(foo) { |
| 20:58.54 | brailsmt_ | goto some_code; |
| 20:59.01 | brailsmt_ | goto exit; |
| 20:59.02 | brailsmt_ | } |
| 20:59.15 | brailsmt_ | dangit... |
| 20:59.19 | kryptik | heh |
| 20:59.19 | brailsmt_ | if(foo) { |
| 20:59.23 | brailsmt_ | goto some_code; |
| 20:59.33 | brailsmt_ | l1: goto exit; |
| 20:59.38 | brailsmt_ | } |
| 20:59.42 | brailsmt_ | some_code: |
| 20:59.51 | brailsmt_ | ... |
| 20:59.58 | brailsmt_ | goto l1; |
| 21:00.00 | brailsmt_ | exit: |
| 21:00.04 | brailsmt_ | return 0; |
| 21:00.07 | levi_ | Most modern languages have some nicer way of 'cleaning up' rather than using a goto, but in C that's a good use for it. |
| 21:00.07 | brailsmt_ | that is bad... |
| 21:00.13 | kryptik | Ahh ok. |
| 21:00.21 | kryptik | I see what it does |
| 21:00.27 | kryptik | But why is it bad |
| 21:00.42 | brailsmt_ | it isn't always, just usually... :) |
| 21:01.07 | kryptik | Oh ok. |
| 21:01.15 | brailsmt_ | you will rarely, if ever, see a goto used outside of low level C code, like the kernel |
| 21:02.24 | brailsmt_ | anyone know of a way in bash to print the length on an env var? |
| 21:02.54 | kryptik | Nope. |
| 21:02.59 | kryptik | wait |
| 21:03.08 | kryptik | echo $var |
| 21:03.12 | kryptik | er |
| 21:03.16 | kryptik | echo $VAR |
| 21:03.34 | brailsmt_ | that prints VAR, not its length |
| 21:03.50 | kryptik | What do you mean the length..? |
| 21:04.51 | brailsmt_ | i got it... 'echo ${#VAR}' |
| 21:05.22 | kryptik | Hmm what is the length |
| 21:05.34 | brailsmt_ | the number of characters in the string... |
| 21:05.47 | kryptik | Oh ok. |
| 21:06.34 | kryptik | Why would you want to find that |
| 21:07.11 | brailsmt_ | to debug why 'if [ -n foo ]' isn't working right :) |
| 21:08.38 | kryptik | Hmm. |
| 21:09.13 | brailsmt_ | mainly: 'if [ -n foo ]; then echo ${#foo}; fi' -> 0 |
| 21:09.34 | brailsmt_ | -n returns true of the length is non-zero |
| 21:09.43 | kryptik | I will quit asking questions.. I dont understand the answers.. |
| 21:09.44 | kryptik | :) |
| 21:14.44 | brailsmt_ | so if foo has no characters in it, then it should never print the size, but this liitle thing is printing the size to be zero, and it should even get to the echo if the length is 0 |
| 21:15.30 | kryptik | Yea. |
| 22:05.00 | *** join/#utah bbeattie (~bbeattie@cpe-66-1-180-69.ut.sprintbbd.net) |
| 22:34.11 | *** join/#utah han_solo (~fugalh@byu074888wks.rn.byu.edu) |
| 22:34.19 | *** join/#utah TimRiker (timr@rikers.org) |
| 22:34.53 | *** mode/#Utah [+o TimRiker] by ChanServ |
| 22:47.47 | Bonez39 | why mr_lag? |
| 22:47.51 | Bonez39 | slow connection today? |
| 23:19.36 | *** join/#utah ibot (ibot@rikers.org) |
| 23:19.36 | *** topic/#utah is http://dmoz.org/Computers/Software/Operating_Systems/Linux/User_Groups/North_America/United_States/Utah/ |
| 23:19.36 | *** mode/#Utah [+o ibot] by ChanServ |
| 23:57.37 | mr_lag | because by the time you get this message you have grown your 5:00 shadow |