Messsage from sigruna14 in MacGuyver - Skills & Academics #tech


John O - 2018-01-29 23:35:06  

Ball peen or claw?

JesseJames 2018-01-29 23:41:31  

Hmm that's a tough one.

Why Tea 2018-01-29 23:46:17  

You not happy with StackOverflow answer, @sigruna14 ?

Why Tea 2018-01-29 23:46:50  

1st answer here is easier than me writing out pointer thingy data structure: https://stackoverflow.com/questions/1088622/how-do-i-create-an-array-of-strings-in-c

sigruna14 2018-01-29 23:50:29  

@Why Tea I'm not sure how that addresses what I'm trying to do here.

Why Tea 2018-01-29 23:51:25  

Then maybe I don't understand the question. "How do I create an array of strings" is your question, and the second answer in that StackOverflow pretty much covers it.

Why Tea 2018-01-29 23:51:45  

For multiple cases.

sigruna14 2018-01-29 23:51:52  

No, I know how to create an array of strings. My question is how to modify individual characters of the strings within said array.

Why Tea 2018-01-29 23:53:40  

The answer to that is in there if you read carefully.

sigruna14 2018-01-29 23:55:07  

```c
char a[2][14];
strcpy(a[0], "blah");
strcpy(a[1], "hmm");```

sigruna14 2018-01-29 23:55:18  

You're talking about this? Wholesale string copy?

Why Tea 2018-01-29 23:56:55  

Are you wanting to hit the individual characters in the string and substitute? I think I did miss the gist of what the question is. You have variable length strings, in an array structure (pointers to a bunch of strings) but you want to change just individual characters at will?

sigruna14 2018-01-29 23:59:48  

It is an array of three strings, each of which is three characters long. It starts out with each string being `"000"`. I need to be able to reach in and change the zeroes to ones where necessary.

Why Tea 2018-01-30 00:00:36  

Aha.

Why Tea 2018-01-30 00:01:01  

But you want to reach in and "touch" each one individually, at will.

Perihelion - CA 2018-01-30 00:01:20  

Pointer math

sigruna14 2018-01-30 00:01:23  

Yes.

Perihelion - CA 2018-01-30 00:02:16  

Add data type size to array pointer to access each char

Perihelion - CA 2018-01-30 00:03:03  

Assuming your language won't let you index the array like a normal person

Perihelion - CA 2018-01-30 00:04:13  

That's all indexes are anyway. Array pointer + index * data type size

sigruna14 2018-01-30 00:04:19  

Well I mean, obviously it won't.

sigruna14 2018-01-30 00:04:42  

So do like `*array + (sizeof(char) * 2)`?

Perihelion - CA 2018-01-30 00:04:49  

Yes

sigruna14 2018-01-30 00:13:59  

@Perihelion - CA Nope, "lvalue required as left operand of assignment"

Perihelion - CA 2018-01-30 15:36:18  

I think you have to use &array to let it know you're treating the array like a bit literal

Perihelion - CA 2018-01-30 15:44:29  

Ok do this for c++ *(array+2) to get value

Perihelion - CA 2018-01-30 15:44:58  

Array + 2 for mem address reference

sigruna14 2018-02-01 18:08:59  

I'm having a weird problem. Anybody wanna help?

ThisIsChris 2018-02-01 19:45:47  
ThisIsChris 2018-02-02 16:10:48  

@sigruna14 is it a C thing?

sigruna14 2018-02-02 16:11:25  

Yeah but it works now. Actually you want the code? See if you can break it. I think it's working. Still need to document it but I can tell you what it accepts.

sigruna14 2018-02-02 16:11:57  
ThisIsChris 2018-02-02 16:13:47  

Yeah let's do it man @sigruna14

sigruna14 2018-02-02 16:14:18  

Okay, I'll DM it to you. But first I'm gonna try to change how I find the command line args to be a little less ridiculous.

ThisIsChris 2018-02-02 17:04:50  

Ok!

Deleted User 2018-02-04 16:51:39  

Hey does anybody know how to put music behind a video I’m editing… I’m using iMovie app

JesseJames 2018-02-04 17:32:38  

@Deleted User you just have to have an audio file on your phone. Select the plus on the left side and then select audio.

Deleted User 2018-02-04 20:00:54  

@JesseJames many times it won’t allow me to upload the song..”copyright” infringement is what the message says... I just (like five mins ago) bought a GoPro .... will that be easier to operate ya think ?

JesseJames 2018-02-04 20:14:29  

The GoPro editor is really good. I like iMovie though because I know it better. Where did you download the song from? Also you will have the same problem with copy rights on GoPro editor also. The best thing to do is find music on soundcloud that is royalty free. @Deleted User

Deleted User 2018-02-05 18:02:01  

I need a WordPress guy

Louis Loire - NY 2018-02-05 18:37:54  

@everyone