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[miauw62]

Find an open source project you're interested in, code for it for a while.

*i2amroy looks pointedly at his signature*

you generally want a project with code standards :^] (jk)

i mean i would recommend /tg/station but that's not written in C++ so
You could try Dungeon Crawl: Stone Soup, it seems pretty cool.

[gigaraptor487]

In a C program I am writing, I have an struct with a struct pointer within it containing an array. I have tried to access it like this

Code: [Select]

struct1->struct2->variable

and then loop through the array using poiner arithmetic as such

Code: [Select]

struct1->struct2++


However, this seems to crash the program, and I am not entirely sure why.


Help?

[miauw62]

Add more parentheses?

[Orange Wizard]

Add more parentheses?

This, unless you can tell us what the error is.

[gigaraptor487]

where abouts would I put them?

[Reelya]

In a C program I am writing, I have an struct with a struct pointer within it containing an array. I have tried to access it like this

Code: [Select]

struct1->struct2->variable

and then loop through the array using poiner arithmetic as such

Code: [Select]

struct1->struct2++


However, this seems to crash the program, and I am not entirely sure why.


Help?

ignore that parentheses thing.

Your problem is that "struct2" is the actual array, right? The name "struct2" is actually a memory pointer pointing at the start of the block of data. It should never be changed after you've created the array, because then you will no longer have a handle to access the entire array.

When cycling through an array, you can use a memory pointer, but it should be a copy of the original one. But it's equally easy to use an int and square brackets.

[Levi]

I decided to see how hard it would be to upgrade from ruby 1.8.6 to ruby 2.2.2 at work today.

I have discovered that SOMEHOW the ruby tk library slows down my oracle database queries by about 500 fold.     

How does that even make sense?  WTF is a GUI library doing that would break my database drivers.

And i'm not even using it yet.  Its just being included, I haven't called single GUI call yet.  Grrr.

/rant

Edit:  Apparently I need to do this for reasons.

Code: [Select]

module TkCore
  RUN_EVENTLOOP_ON_MAIN_THREAD = true #FIXES BUG IN TK THAT KILLS DB PERFORMANCE.
end
RUN_EVENTLOOP_ON_MAIN_THREAD = true #FIXES BUG IN TK THAT KILLS DB PERFORMANCE.
require 'tk'
#NOW I'M FINE


[EnigmaticHat]

If I send a random person a .py file, will they be able to click on it and run it?  Or does that require having python installed?

[Cthulufaic]

If I send a random person a .py file, will they be able to click on it and run it?  Or does that require having python installed?

Probably, but he/she/[tumblr-pronoun-goes-here] can just download IronPython to use it.

[gigaraptor487]

In a C program I am writing, I have an struct with a struct pointer within it containing an array. I have tried to access it like this

Code: [Select]

struct1->struct2->variable

and then loop through the array using poiner arithmetic as such

Code: [Select]

struct1->struct2++


However, this seems to crash the program, and I am not entirely sure why.


Help?

ignore that parentheses thing.

Your problem is that "struct2" is the actual array, right? The name "struct2" is actually a memory pointer pointing at the start of the block of data. It should never be changed after you've created the array, because then you will no longer have a handle to access the entire array.

When cycling through an array, you can use a memory pointer, but it should be a copy of the original one. But it's equally easy to use an int and square brackets.

Yeah, "struct2" is a 1 dimensional pointed malloced to include an array. I made a copy of the pointer, but used the original for some reason.

[Orange Wizard]

If I send a random person a .py file, will they be able to click on it and run it?  Or does that require having python installed?

Probably, but he/she/[tumblr-pronoun-goes-here] can just download IronPython to use it.

IronPython only works for Python 2, IIRC. If you want any random person to be able to run it, you're better off compiling it into a binary using one of those utilities floating around, like py2exe or whatever.

[Telgin]

Yeah, "struct2" is a 1 dimensional pointed malloced to include an array. I made a copy of the pointer, but used the original for some reason.

Can you show the code allocating the memory and the code assigning to struct2?

Does looping through the original cause the program to crash too?

[gigaraptor487]

alright the code for assigning struct 2 memory

Code: [Select]

struct1->struct2 = malloc(10 * sizeof(struct2))


Will update this post in 2 mins when I have tested it.

EDIT:

Yeah still crashes

[gigaraptor487]

managed to get it working. This whole time I didn't realise that '->' meant dereference, so i was getting the data pointed to rather than the pointer itself. This was fixed by simply putting the ampersand at the front of the assignment, although the complier complains about it.

[miauw62]

If I send a random person a .py file, will they be able to click on it and run it?  Or does that require having python installed?

They need to have python installed, and often even the correct same version you use.