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[MadocComadrin]

One of my Profs held that attitude and I couldn't finish the assignment because GCC couldn't parse the hackish code allowed by it.

[Skyrunner]

Maybe you could have used MSVS... Just a thought >_>

[MadocComadrin]

I could have, but why should I have to download MSVS when I had GCC already set up and had completed the earlier assignments with it? It wasn't a MSVS course, it was a C++ and data structures course. Is standard compliant code too much to ask for in an academic environment?

[Telgin]

I'm now curious what the assignment must have been, because I can't imagine using compiler specific extensions or hacks in such a course.  That really does sound like bad form.

I will stand by using Visual Studio for its debugger though.  Back when I took a similar course, I compiled assignments in it more than once just so I could use its debugger, even though we were required to build the final executable in a Linux environment.

[Putnam]

Fun fact: our illustrious leader, Toady One, uses MSVC for the debugger.

[Siquo]

My first Open Source Project. I just wrote the web-part, though. It's also not very clean, and if you haven't worked with Yii, probably won't make much sense.
If you try to install it, be careful as, IIRC, you can make it into a debian package installer, but that one is destructive to existing apache settings (I did not make that part), it's supposed to run in a dedicated VPS.

https://greenhost.io/projects/uman/

So yeah, probably not that interesting to anyone here, but still, a milestone of its own for me

[zombie urist]

C++

Code: [Select]

float t = 1.0/10.0; //t = 0.1
int i = 1 / t;      //i = 9?
float f = 1 / t;    //f = 10.0
int if = f;         //if = 10?
Anyone know why?

[eerr]

Add like .000001 or something before rounding to (INT)

It's either marginally above or below 0.1 in floating Point.
You just got rounded down

[Mini]

Actually, you can just use this function. But yes, floating point error means that casting directly to int (or comparing equals to without some sort of margin for error will very likely not give you the result you expected.

[cerapa]

C++

Code: [Select]

float t = 1.0/10.0; //t = 0.1
int i = 1 / t;      //i = 9?
float f = 1 / t;    //f = 10.0
int if = f;         //if = 10?
Anyone know why?

Dis some testing of my own

Code: [Select]

float t = 1.0/10.0; //t = 0.1
int i = 1 / t;      //i = 9
float f = 1 / t;    //f = 10
int if = f;         //if = 10
double d = 1 / t; // d = 10
int id = d; // id = 9 (wtf)

Might be doing division as doubles and then...fucking up gloriously.

[miauw62]

Floats are an incarnation of Satan.

[Skyrunner]

Very convenient incarnations of Satan.

[ECrownofFire]

Just never cast them to integer types and you're fine. There's a reason rounding functions exist.

Also don't test for equality with them. Sadly there's no clean solution for this except just not doing it.

[MorleyDev]

1 / d is probably being stored as something like 9.99999999991321254125 because rounding errors. Casting to an int always floors the value, and thus 9.

[Lightningfalcon]

Can someone help me with  this?  We had to make a Queue for a hospital waiting list in Computer Science.  He gave us the code for making a queue, and it worked for most of the class so that part should work. 

Spoiler (click to show/hide)

import java.util.*;
import java.lang.*;
class Queue
{
   private ArrayList<String> list;
   
   Queue()
   {
      list=new ArrayList<String>();
   }
   
   void enque(String n)
   {
      list.add(n);
   }
   
   Object deque()
   {
      if (isempty()) return null;
      return list.remove(0);
   }
   int size()
   {
      return list.size();
   }
   boolean isempty()
   {
      if (size()==0) return true;
      return false;
   }
   Object peek(int i)
   {
      if (i>size()) return null;
      return list.get(i);
   }
   
}


class priorityQueue
{
   private Queue[] stuff;
   
   priorityQueue(int n)
   {
      stuff=new Queue[n];
      for (int i=0; i<n; i++)
      {
         stuff=new Queue();
      }
   }
   
   void enque(int n, String h)
   {
      stuff[n].enque(h);
   }
   
   Object deque()
   {
      for (int i=0; i<stuff.length; i++)
      {
         if (stuff.isempty()) continue;
         return stuff.deque();
      }
      return null;
   }
   
   boolean isempty()
   {
      for (int i=0; i<stuff.length; i++)
      {
         if (stuff.size()!=0) return false;
         
      }
      return true;
   }
   
   
}

Spoiler (click to show/hide)

import java.util.*;
import java.lang.*;
public class FirstIn
{
   
    public static void main(String[] args)
    {
       String name;
       int priority;
        Scanner keys= new Scanner(System.in);
        System.out.println("Enter number of priorities");
       int prioritynumber=keys.nextInt();
       priorityQueue[] patients= new priorityQueue[prioritynumber];
       do
       {
          System.out.println("1. Enque 2. Deque 3. Print List 4.");
          int menu= keys.nextInt();
          if (menu==1)
          {
             System.out.println ("Enter patient name");
             name=keys.next();
             System.out.println ("Enter priority");
             priority=keys.nextInt();
             patients.enque(priority, name);
             
          }
          if (menu==2)
          {
          
          }
          if (menu==3)
          {
             System.out.println("Which priority?");
             int selection=keys.nextInt();
          }
          if (menu==4)
          {
          
          }
       
         } while(0<1);
      }
   
   
}

I checked the Queue code and it's the exact same as the person next to me, and enque is set up the same as the guy next to me.    The error I'm getting is "Cannot find symbol" on
patients.enque(priority, name);