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Control Flow

2 (2.2%)

Arrays, Strings, Pointers, and References

8 (9%)

Functions

4 (4.5%)

Basic object-oriented programming

30 (33.7%)

A bit more advanced OOP (Composition, Operator overloading, Inheritance, Virtual Functions)

18 (20.2%)

Templates

8 (9%)

Other (Explain)

4 (4.5%)

Working with files?  (Streams)

15 (16.9%)

Total Members Voted: 89

[Alexhans]

Code: [Select]

double add(double x, double y){
return x+y;}

double subtract(double x, double y){
return x+y;}Careful when you copy code. 

[malimbar04]

:O

I didn't see that, thanks for that as well.

The funny thing is that I didn't copy, but just typed the wrong character on one of them.

[eerr]

:O

I didn't see that, thanks for that as well.

The funny thing is that I didn't copy, but just typed the wrong character on one of them.

Clones, clones in yo head!

[Oscuro1987]

Umm I don't know if it's appropriate to post it here, but thanks for this article, it's highly useful and nice.

[Siquo]

Umm I don't know if it's appropriate to post it here, but thanks for this article, it's highly useful and nice.

Wow, that post said so little that I actually went ahead and checked your post history if you were a spambot. 

[Oscuro1987]

Umm I don't know if it's appropriate to post it here, but thanks for this article, it's highly useful and nice.

Wow, that post said so little that I actually went ahead and checked your post history if you were a spambot. 

It's not quantity that matters, it's quality.

[olemars]

Umm I don't know if it's appropriate to post it here, but thanks for this article, it's highly useful and nice.

Wow, that post said so little that I actually went ahead and checked your post history if you were a spambot. 

I did too. Suspicions lingered until post 7 or so.

[forsaken1111]

forsaken1111: I am several hours late for bed, so I cant go very deep. but that looks like a relatively simple problem in numeric linear algebra and can I believe it can be solved with relatively simple matrix transformations.

Did you (or anyone else) ever make any progress on this?

[Shades]

Umm I don't know if it's appropriate to post it here, but thanks for this article, it's highly useful and nice.

No idea which article you mean but I'm fairly sure it's okay to post to say thanks to whoever is was.

At somepoint we should really go through this thread and collect all the article links people have posted, I know Alexhans was doing that but I've not seen him post here in a while.

[Alexhans]

Yes, I've been planning on collecting everything that's been posted here and updating the first page for some time now.  I thought you'd have created a new thread by now but, who would've known.

I'll just do it.

Collaboration is welcome.  I'll open a couple of pads and modify the post from there so, if I miss anything people can modify things before I paste them in b12.
http://piratepad.net/hmteJdYS5e  (Forum Page 1)
http://piratepad.net/uINerGOUTF (Forum Page 2)

EDIT:  Ugh... I'm lagging horribly.  There's some interesting discussions in this thread but I'm not sure if I should link to any specific post.  If you have suggestions, do tell.

[ILikePie]

How do I free l->next?

Code: [Select]

void rem_after (LIST *l) /* remove the node after 'l' */
{
     l->next = l->next->next;
}
Doing this gives a glibc error at runtime:

Code: [Select]

void rem_after (LIST *l) /* remove the node after 'l' */
{
     LIST *f = l->next;
     l->next = l->next->next;
     free(f);
}

...

$./bin
*** glibc detected *** ./bin: free(): invalid pointer: 0xbff49a60 ***
======= Backtrace: =========
/lib/libc.so.6(+0x6b8d1)[0xb76b08d1]
/lib/libc.so.6(+0x6d1e6)[0xb76b21e6]
/lib/libc.so.6(cfree+0x6d)[0xb76b534d]
./bin[0x80486b1]
/lib/libc.so.6(__libc_start_main+0xe6)[0xb765bbb6]
./bin[0x8048451]
======= Memory map: ========
08048000-08049000 r-xp 00000000 08:03 2588995    /home/ron/code/c/libs/bin
08049000-0804a000 r--p 00000000 08:03 2588995    /home/ron/code/c/libs/bin
0804a000-0804b000 rw-p 00001000 08:03 2588995    /home/ron/code/c/libs/bin
0858b000-085ac000 rw-p 00000000 00:00 0          [heap]
b7610000-b762b000 r-xp 00000000 08:03 5237437    /usr/lib/gcc/i686-pc-linux-gnu/4.5.2/libgcc_s.so.1
b762b000-b762c000 r--p 0001a000 08:03 5237437    /usr/lib/gcc/i686-pc-linux-gnu/4.5.2/libgcc_s.so.1
b762c000-b762d000 rw-p 0001b000 08:03 5237437    /usr/lib/gcc/i686-pc-linux-gnu/4.5.2/libgcc_s.so.1
b7644000-b7645000 rw-p 00000000 00:00 0
b7645000-b7788000 r-xp 00000000 08:03 5139001    /lib/libc-2.11.3.so
b7788000-b778a000 r--p 00143000 08:03 5139001    /lib/libc-2.11.3.so
b778a000-b778b000 rw-p 00145000 08:03 5139001    /lib/libc-2.11.3.so
b778b000-b778e000 rw-p 00000000 00:00 0
b778e000-b77b1000 r-xp 00000000 08:03 5139014    /lib/libm-2.11.3.so
b77b1000-b77b2000 r--p 00022000 08:03 5139014    /lib/libm-2.11.3.so
b77b2000-b77b3000 rw-p 00023000 08:03 5139014    /lib/libm-2.11.3.so
b77c9000-b77cb000 rw-p 00000000 00:00 0
b77cb000-b77cc000 r-xp 00000000 00:00 0          [vdso]
b77cc000-b77e8000 r-xp 00000000 08:03 5138831    /lib/ld-2.11.3.so
b77e8000-b77e9000 r--p 0001b000 08:03 5138831    /lib/ld-2.11.3.so
b77e9000-b77ea000 rw-p 0001c000 08:03 5138831    /lib/ld-2.11.3.so
bff2b000-bff4c000 rw-p 00000000 00:00 0          [stack]
Aborted


[eerr]

How long is the list?

[ILikePie]

It varies from place to place I guess. Here's the list definition:

Code: [Select]

typedef struct __Node {
     int data;
     struct __Node *next;
} _Node;

#define STACK _Node
#define LIST  _Node


[eerr]

So what happens to a list exactly one unit long?

[nenjin]

Alright, I'm totally stumped, been at this for hours.

I'm on Python 2.41.

What I'm trying to do: I've set it up so players enter a name for their character. I want these custom names to then be used as the names of classes that hold all their character data. (Creating unique player instances from a racial class file.) This way I can export the class as a file using the character names and not some generic file name I have to assign to it.

My problem: I cannot find a way to have a variable be used as a class name (or be read as input for a lot of other things.) I first create a function with raw_input, and assign the returned raw input a variable name. But when I try to do:

Name_Variable = Human() (which is an instance of the class "Creature")

I get a class named Name_Variable instead of, say, Trogdor. (The name the player entered.) 

I know the function is properly returning the value to 'Name_Variable', because everywhere else within the code it correctly reports its value.

I obviously still don't get some fundamental logic of Python, or even if I'm trying to create the right data structure for my goals, but my questions are:

How do I create a class whose name is generated from player input? Can variables not be used at all for class names?