The Big Programming Thread - Page 118

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1. This is not a "do my homework for me" thread. If you have specific questions, ask, but don't post an assignment or homework problem and expect an exact solution.
2. No recruiting for your cockamamie projects (you won't replace facebook with 3 dudes you found on the internet and $20)
3. If you can't articulate why a language is bad, don't start slinging shit about it. Just remember that nothing is worse than making CSS IE6 compatible.
4. Use [code] tags to format code blocks.

Craton

United States17303 Posts

February 21 2012 22:20 GMT

#2341

I have a Windows Mobile application I'm working on and I want to connect to a SQL Server database (housed within SQL Server 2008 that's located on another machine). The problem is there doesn't seem to be (or at least I can't find) any way to do this. There's no System.Data to use, nor is there a way to add such a reference. It seems like connecting to a database should definitely be possible for a phone application to do, though, which is why it seems odd that I can't find anything on how to do it.

Really what I'm looking for is some kind of mobile equivalent for SQLConnection and SQLCommand. Any thoughts?

tofucake

Hyrule19260 Posts

February 21 2012 22:22 GMT

#2342

Your googlefu is weak...

noonoo

3 Posts

February 21 2012 22:23 GMT

#2343

--- Nuked ---

MiyaviTeddy

Canada697 Posts

February 22 2012 19:10 GMT

#2344

Hey guys, I'm having trouble with a function in c.

I'm trying to make a function that takes an array of characters (basically a string/phrase) and count how many words out of it. A "word" is defined to be a sequence of non-null, non-whitespace characters, separated from other words by whitespace.

This is what I have right now.


int words( char sentence[]){
        int wrd = 0;
        int i, j;

        for (i = 0; sentence[i] != '\0'; i++){

                if(sentence[i] != '\t' && sentence[i] != ' ' && sentence[i] != '\n' && sentence[i] != '\0'){

                        while(sentence[i] != '\t' && sentence[i] != ' ' && sentence[i] != '\n' && sentence[i] != '\0'){

                                i++;

                        }
                wrd++;
                }

        }

        return wrd;
}

right now I'm using the phrase " R2! \t\t Where \n\n are you?" (exactly as typed) and I get 5 words when there is only 4 (R2!, Where, are, you?. Yes they all count).

Help?

freelander

Hungary4707 Posts

February 22 2012 19:30 GMT

#2345

I think at the last word, your while loop puts i at the /0. Then your for loop does the i++ instruction after executing its block. So now your sentence[i] is the next byte in memory after your string. I am not sure though.

LukeNukeEm

31 Posts

February 22 2012 19:32 GMT

#2346

Your iteration is off. Imagine the sentence "abc", which is {'a', 'b', 'c', '\0'}. Your inner while-loop increases i, until it reaches '\0'.
Then your for-loop increases i again, and you are in a place where you shouldn't be.

supereddie

Netherlands151 Posts

February 22 2012 19:41 GMT

#2347

try something like this (much easier)

int wrd = 0, i = 0;
while(sentence[i] != '\0')
 if (sentence[i++] == ' ') wrd++;

if(i > 0) wrd++;

Basically, number of words equals number of spaces + 1

Do some checking of course to prevent more than one sequential space being counted as more than one word.

darthfoley

United States8004 Posts

February 22 2012 19:53 GMT

#2348

As a COMPLETE noob in this subject, i'm thankful for all of you who do the things i find too confusing to try!

Holy_AT

Austria978 Posts

February 22 2012 19:58 GMT

#2349

On February 23 2012 04:41 supereddie wrote:
try something like this (much easier)

int wrd = 0, i = 0;
while(sentence[i] != '\0')
 if (sentence[i++] == ' ') wrd++;

if(i > 0) wrd++;

Basically, number of words equals number of spaces + 1

Do some checking of course to prevent more than one sequential space being counted as more than one word.

I dont think it is a good approach, you could have multiple white spaces between words and your method would not work. A good approach is to count the switches. Just tore the before value and if the before value == " " and the actual value is something else then " " then he should count.

Insane

United States4991 Posts

February 22 2012 19:58 GMT

#2350

On the assumption that you don't want to just use some library that splits strings as this is for some assignment, it's probably easiest just to do a 1-pass through of the string and keep track of whether you're in a word or not.


int isInWord = 0;
for (i = 0; sentence[i] != '\0'; i++) 
{
  if (IsWhiteSpace(sentence[i])) 
  {
    if (isInWord)
    {
      wrd++;
    }

    isInWord = false;
  }
  else 
  {
    isInWord = true;
  }
}

if (isInWord) 
{
  wrd++;
}

Generally increasing the for-looped variable inside the loop itself is something you should be very careful/wary about doing

. Also note that you never used 'j' anywhere from what I can see.

e: IsWhiteSpace would be a function you'd write that has the characters that for the sake of this you're considering whitespace...

Holy_AT

Austria978 Posts

February 22 2012 20:07 GMT

#2351

sentence[i] != '\0'

I am more the C# guy, but isnt that a bad way to query for the end of an array ?

isnt there some sentence.count or something like that to get the array length ? And stop the loop if i >array.length ?

LukeNukeEm

31 Posts

February 22 2012 20:12 GMT

#2352

In plain C no, there isn't.

Insane

United States4991 Posts

February 22 2012 20:14 GMT

#2353

On February 23 2012 05:07 Holy_AT wrote:

Show nested quote +

If it's just a char pointer array thingy you don't know what the length is without iterating until you find null. There are functions to do that for you obviously, but for classroom assignments I'd be wary about using library functions unless you know you are allowed to use them.

For C# it's a trivial one liner with sentence.Split anyway FWIW

. return sentence.Split(new[] { ' ', '\n', '\0', '\t' }, StringSplitOptions.RemoveEmptyEntries).Length;

freelander

Hungary4707 Posts

February 22 2012 20:20 GMT

#2354

damn you high level languages!

MiyaviTeddy

Canada697 Posts

February 22 2012 20:35 GMT

#2355

Happy birthday Luke!

Thanks guys for the advice. As for that j, it was used for a different algorithm that I had but it didn't end up the way I wanted it to be.

I managed to get the function working, onward to the second function (which I think I'll need some help...).

CecilSunkure

United States2829 Posts

February 24 2012 04:33 GMT

#2356

Wrote another blog post on game programming in C! Thought you guys here would find it interesting: link.

NoSlack

United States112 Posts

February 24 2012 17:15 GMT

#2357

On February 24 2012 13:33 CecilSunkure wrote:
Wrote another blog post on game programming in C! Thought you guys here would find it interesting: link.

Awesome read thanks!

I'm afraid that learning on my own just isn't working, I'm going to need some college classes. I need to be around people that are doing the same thing. As an infantryman in the army, there aren't too many people around me interested in programming

Some day...

FoxyMayhem

624 Posts

February 24 2012 17:46 GMT

#2358

I have a goal with a website I'm in charge of. It's for a family business. I dipped in HTML back in 04 and 05, but what I want to do is currently beyond my knowledge. In otherwords, I don't know where to look to start learning what I need -- or, perhaps, who to hire.

Is anyone in this good community interested in a little web development side project, or pointing me in the right direction?

Details
+ Show Spoiler +

Currently, the horse pedigrees look like this.

That, my brother said, is the absolute best we can do. I know he's wrong. I'd like the pedigree like this:

With Tooltips Like This:

So, what's the best way to go about creating this? Ideally, it can work inside of our wordpress. Those mockups are my work, so graphics is not so much a problem, just the technical side of things.

Thanks guys.

CecilSunkure

United States2829 Posts

February 24 2012 19:50 GMT

#2359

On February 25 2012 02:15 NoSlack wrote:

Show nested quote +

Some day...

Hey glad you liked it! Bump that thread if you get a chance, would love more people to see and potentially get into programming.

fabiano

Brazil4644 Posts

February 24 2012 19:55 GMT

#2360

On February 25 2012 02:46 FoxyMayhem wrote:
I have a goal with a website I'm in charge of. It's for a family business. I dipped in HTML back in 04 and 05, but what I want to do is currently beyond my knowledge. In otherwords, I don't know where to look to start learning what I need -- or, perhaps, who to hire.

Is anyone in this good community interested in a little web development side project, or pointing me in the right direction?

Details
+ Show Spoiler +

Currently, the horse pedigrees look like this.

That, my brother said, is the absolute best we can do. I know he's wrong. I'd like the pedigree like this:

With Tooltips Like This:

That is extremely easy to achieve, especially if the content is static and you don't plan on changing that often. All you need is to read tutorials on HTML and CSS.

Basically what you have there is a table, so learn how to fancy the tables with CSS and you are ready to go.

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