The Big Programming Thread - Page 119

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Thread Rules
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.

Frigo

Hungary1023 Posts

February 24 2012 23:09 GMT

#2361

User was warned for this post

BottleAbuser

Korea (South)1888 Posts

February 25 2012 09:45 GMT

#2362

On February 25 2012 04:55 fabiano wrote:

Show nested quote +

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.

It doesn't take that long to learn CSS. Do it right with div and position layouts, and you'll save yourself a lot of headaches later.

Frigo

Hungary1023 Posts

February 25 2012 11:31 GMT

#2363

On February 25 2012 08:09 Frigo wrote:
User was warned for this post

Please don't post memes, image macros and similar sorts of pictures on team liquid.

Those were of my own making but nevermind -_-

Anyone has any idea why can't Eclipse use SVN properly with linked folders (via Subclipse)? At work we use Eclipse with ClearCase and an open source ClearCase plugin and we have no problem with version control & linked folders. Unavailability of integrated version control is way too much of a loss.

MisterD

Germany1338 Posts

February 25 2012 13:49 GMT

#2364

On February 25 2012 20:31 Frigo wrote:

Show nested quote +

Those were of my own making but nevermind -_-

they are still image macros Oo

On February 25 2012 20:31 Frigo wrote:
Anyone has any idea why can't Eclipse use SVN properly with linked folders (via Subclipse)? At work we use Eclipse with ClearCase and an open source ClearCase plugin and we have no problem with version control & linked folders. Unavailability of integrated version control is way too much of a loss.

Maybe give subversive a try instead of subclipse. No guarantees though, i don't even know what linked folders in svn are ^^ but subversive always works better than subclipse in my experience.

Morga

Belgium35 Posts

February 25 2012 16:13 GMT

#2365

On February 23 2012 04:10 MiyaviTeddy wrote:
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?


int countWords(char* word,int length)
{
    int iswhitespace(char c)
    {
           return c==' '||c=='\t'||c=='\n';
                   
    }
    
    enum state{WHITE,NONWHITE};
    int count = 1;
    int i ;
          int state = WHITE;
    for(i = 0 ; i < length; i ++)
    {
          char current = word[i];
          int white = iswhitespace(current);
          switch(state)
          {
          case NONWHITE:
               if(white)
               {
                          state = WHITE;
                          count++;
                          break;
               }else
               {break;}
          case WHITE:
               if(white)
               {
                          break;
               }
               else
               {
                   state = NONWHITE;
                   break;
               }
          }
    }
    return count ;}

Havent written c in quite a while but this seems to compile and work ( also you can easily add whitespace characters).

FoxyMayhem

624 Posts

February 25 2012 16:14 GMT

#2366

On February 25 2012 18:45 BottleAbuser wrote:

Show nested quote +

It doesn't take that long to learn CSS. Do it right with div and position layouts, and you'll save yourself a lot of headaches later.

Cool, so search for "CSS tutorials position layouts"? Is that where I begin?

Chaosvuistje

Netherlands2581 Posts

February 25 2012 16:18 GMT

#2367

On February 26 2012 01:14 FoxyMayhem wrote:

Show nested quote +

Cool, so search for "CSS tutorials position layouts"? Is that where I begin?

Here's a great tutorial site: http://thenewboston.org/list.php?cat=40

I directed you to the HTML/CSS bit, but it has all kinds of programming tutorials.

delHospital

Poland261 Posts

February 25 2012 16:22 GMT

#2368

On February 26 2012 01:13 Morga wrote:
+ Show Spoiler +

On February 23 2012 04:10 MiyaviTeddy wrote:
Hey guys, I'm having trouble with a function in c.


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?


int countWords(char* word,int length)
{
    int iswhitespace(char c)
    {
           return c==' '||c=='\t'||c=='\n';
                   
    }
    
    enum state{WHITE,NONWHITE};
    int count = 1;
    int i ;
          int state = WHITE;
    for(i = 0 ; i < length; i ++)
    {
          char current = word[i];
          int white = iswhitespace(current);
          switch(state)
          {
          case NONWHITE:
               if(white)
               {
                          state = WHITE;
                          count++;
                          break;
               }else
               {break;}
          case WHITE:
               if(white)
               {
                          break;
               }
               else
               {
                   state = NONWHITE;
                   break;
               }
          }
    }
    return count ;}

Havent written c in quite a while but this seems to compile and work ( also you can easily add whitespace characters).

Note that this will work only in GCC. F.e. there are no closures in C89/99 ;P

Morga

Belgium35 Posts

February 25 2012 16:30 GMT

#2369

Note that this will work only in GCC. F.e. there are no closures in C89/99 ;P

Really :p, had no idea ( I just installed dev c++ real quick to have a c compiler ). Which part will break ( I presume the function in the function :D ) , fixing the problem can't be that hard anyway ?

CecilSunkure

United States2829 Posts

February 25 2012 18:07 GMT

#2370

On February 26 2012 01:30 Morga wrote:

Show nested quote +

Go install Visual Studio Express!

HyperionDreamer

Canada1528 Posts

February 25 2012 18:14 GMT

#2371

Hey guys, I've got a question about OS programming. I don't know if any of you have experience with operating system level implementation, but I'm essentially writing my own toy UNIX OS as a part of my thesis (I'm a grad student). Essentially I'm stuck implementing the execv() system call that will allow users to run programs from the cmd prompt.

Before I post an assload of code and ask for help, I'm just probing to see if there is anyone who has experience in OS programming that might be able to help out.

Morga

Belgium35 Posts

February 25 2012 21:18 GMT

#2372

On February 26 2012 03:07 CecilSunkure wrote:

Show nested quote +

Go install Visual Studio Express!

We used to have dreamspark but this semester I found out our school doesn't support it anymore

Frigo

Hungary1023 Posts

February 25 2012 22:42 GMT

#2373

On February 25 2012 22:49 MisterD wrote:

Show nested quote +

Maybe give subversive a try instead of subclipse. No guarantees though, i don't even know what linked folders in svn are ^^ but subversive always works better than subclipse in my experience.

Tried Subversive a while ago, had problems with it, I prefer Subclipse. Tho I might check if it handles linked folders right.

Linked folders are folders not present in the project directory, created via New Folder / Advanced / Link to alternate location (Linked folder). They can point to a directory in your file system, or to a project variable. The latter can be used for relative paths, so with them it is possible to have the project file in a separate subdirectory of the svn repository.

billy5000

United States865 Posts

February 27 2012 09:05 GMT

#2374

soo i'm a 1st year cs student, and i just finished a simple (at least to you guys) project of creating conway's game of life simulation. this is our first ever "real" programming assignment and omg it feels good finally finishing it! even though it's probably the most inefficient way of doing it and it only took maybe a couple of hours, i did it nonetheless yay!

honestly, i've never felt this excited from completing an assignment possibly due to the fact that i've never spent more than 10min of completing each individual assignment. now there's this fire inside of me who wants to do the challenging (similar) exercises at the end of each chapter of our textbook!

SRBNikola

Serbia191 Posts

February 27 2012 09:29 GMT

#2375

To OP, also C is more fun language than C++

Abductedonut

United States324 Posts

February 27 2012 09:33 GMT

#2376

On February 23 2012 04:10 MiyaviTeddy wrote:
Hey guys, I'm having trouble with a function in c.


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?

Hihihi! I'm just a lowly programmer noob who can't even get a date with a girl I like, but perhaps I can make this less of a headache for you!


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

int main(int argc, char *argv[])
{
  char kitten[] = "The \n \n quick brown fox jumps over the lazy dog, but only if it's sunday. evening";
 // char kitten[] = " R2! \t\t Where \n\n are you?";
  printf("Our Sentence is: %s \n",kitten);
  
  char* split = strtok(kitten," ,. ");
  
  while( split != NULL )
  {
    if ( isspace(split[0]) )
    {
       split = strtok(NULL," ,.");
       continue;
    }
       
    printf("Splitting: %s \n",split);
    split = strtok(NULL," ,.");
  }
  
  system("PAUSE");	
  return 0;
}

Remember to say thanks if someone is helpful!

Now... if you could help me get that girl, we'd be even

*edit* I realize you might need JUST a function instead of an idea... here you go..
+ Show Spoiler +


int words( char sentence[] )
{
    int count = 0;
    char* split = strtok(sentence," ,.");
    
    while( split != NULL )
    {
        if ( isspace(split[0]) )
        {
           split = strtok(NULL," ,.");
           continue;
        }
    
      count++;
      split = strtok(NULL," ,.");
    }
  
  return count;
}

cyst

United States9 Posts

February 27 2012 10:04 GMT

#2377

On February 27 2012 18:33 Abductedonut wrote:

Show nested quote +

On February 23 2012 04:10 MiyaviTeddy wrote:
Hey guys, I'm having trouble with a function in c.


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?

Hihihi! I'm just a lowly programmer noob who can't even get a date with a girl I like, but perhaps I can make this less of a headache for you!


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

int main(int argc, char *argv[])
{
  char kitten[] = "The \n \n quick brown fox jumps over the lazy dog, but only if it's sunday. evening";
 // char kitten[] = " R2! \t\t Where \n\n are you?";
  printf("Our Sentence is: %s \n",kitten);
  
  char* split = strtok(kitten," ,. ");
  
  while( split != NULL )
  {
    if ( isspace(split[0]) )
    {
       split = strtok(NULL," ,.");
       continue;
    }
       
    printf("Splitting: %s \n",split);
    split = strtok(NULL," ,.");
  }
  
  system("PAUSE");	
  return 0;
}

Remember to say thanks if someone is helpful!

Now... if you could help me get that girl, we'd be even

*edit* I realize you might need JUST a function instead of an idea... here you go..
+ Show Spoiler +


int words( char sentence[] )
{
    int count = 0;
    char* split = strtok(sentence," ,.");
    
    while( split != NULL )
    {
        if ( isspace(split[0] )
        {
           split = strtok(NULL," ,.");
           continue;
        }
    
      count++;
      split = strtok(NULL," ,.");
    }
  
  return count;
}

If you want to understand what's wrong with your original function, take a close look at what happens when the loop approaches the end of the string. Discovering it yourself would be great debugging experience, but you can also peek below.

+ Show Spoiler +

Since i is incremented inside the while loop, when you re-enter the for loop, it is incremented again. When the while loop places i at the '\0' character, the for loop makes i index to the next memory location after the '\0', which could be anything. This is why an iterator should usually not be tweaked within a loop's execution unless absolutely necessary (almost never).

tofucake

Hyrule19260 Posts

February 27 2012 14:33 GMT

#2378

On February 27 2012 18:05 billy5000 wrote:
soo i'm a 1st year cs student, and i just finished a simple (at least to you guys) project of creating conway's game of life simulation. this is our first ever "real" programming assignment and omg it feels good finally finishing it! even though it's probably the most inefficient way of doing it and it only took maybe a couple of hours, i did it nonetheless yay!

honestly, i've never felt this excited from completing an assignment possibly due to the fact that i've never spent more than 10min of completing each individual assignment. now there's this fire inside of me who wants to do the challenging (similar) exercises at the end of each chapter of our textbook!

game of life is still one of my favorite things :D

pettter

Sweden1032 Posts

February 27 2012 16:10 GMT

#2379

On February 26 2012 03:14 HyperionDreamer wrote:
Hey guys, I've got a question about OS programming. I don't know if any of you have experience with operating system level implementation, but I'm essentially writing my own toy UNIX OS as a part of my thesis (I'm a grad student). Essentially I'm stuck implementing the execv() system call that will allow users to run programs from the cmd prompt.

Before I post an assload of code and ask for help, I'm just probing to see if there is anyone who has experience in OS programming that might be able to help out.

I can't say I've done a lot of OS level coding, but I have 7.5 ECTS credits on the subject, and have coded quite a bit of low-level C coding, so maybe I can be of some assistance.

heroyi

United States1064 Posts

February 28 2012 04:29 GMT

#2380

I was wondering if anyone can give me a quick run down (just a general idea) of how one is able to reverse engineer a software (or how to be able to see the coding to it). I am interested in hacking NOT cracking.

do you just use some sort of decompiler and from the result do you just go and play around with the coding? Or is it more of you looking at the code and trying to find holes that you can try to exploit?

i am still new to the whole programming world. I am an aspiring programmer xD
sry for my noobines

edit: I am currently learning c++ and lets assume the program I am trying to hack uses C or C++

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