dev notes thread

by Melancholy

Melancholy
すけべ
Admin
Posts: 3,863
Threads: 213
Joined: Jul 2014
Reputation: 60
10-19-2016, 01:33 AM
#61747 (1)
post dev notes below. you can use this thread for your own future reference or to share cool/useful findings.

i figured this kind of thread would be interesting, as i learn something new every day; and it'd be cool to learn stuff from everyone's experience.



while trying to fix some mobile inconsistencies on ios safari, I found out that iti doesn't like:
Code:
min-height: auto;

to fix, i had to do:
Code:
min-height: 0;

Backlash
Thread Necromancer
Nephilim
Posts: 986
Threads: 33
Joined: Oct 2015
Reputation: 15
10-19-2016, 09:51 PM
#61780 (2)
Little somethin' for Android devs embarking on their first real project: If your application crashes and you can't seem to figure out why, start by ensuring that every statement (save the ones that import libraries) are in methods.

When I was building my first Android app, I spent an entire week trying to switch Activities without crashing; even enlisting the help of a friend. What he failed to notice was that the statements that collected data from the previous Activity were outside of a method, which led to a fatal error. I'd imagine this is much less of a problem in Java programs with a dedicated main method.

[+] 1 user loves Backlash's post
KuroAku
lainchan
lainchan
Posts: 46
Threads: 1
Joined: Jul 2016
Reputation: 0
10-22-2016, 01:40 PM (This post was last modified: 10-22-2016, 01:41 PM by KuroAku.)
#61930 (3)
I'm monitoring this thread.

Quick contribution with a C hack

Code:
//Given an array
int a[5];

// This line is correct
int b = a[1];

// And this line is correct too
int c = 1[a];

This is because of how the compiler transforms `a[1]` to `*(a + 1)` and `*(a + 1)` is equivalent to `*(1 + a)`
RX14
Chibi Hentai Master
Optimist
Posts: 497
Threads: 5
Joined: Nov 2015
Reputation: 1
10-22-2016, 02:08 PM
#61933 (4)
(10-22-2016, 01:40 PM)KuroAku Wrote:
Code:
//Given an array
int a[5];

// This line is correct
int b = a[1];

// And this line is correct too
int c = 1[a];

This is because of how the compiler transforms `a[1]` to `*(a + 1)` and `*(a + 1)` is equivalent to `*(1 + a)`

Thats interesting as fuck but holy shit never do that in serious code. (I wouldn't use C in serious code anyway...)

[Image: 68747470733a2f2f6177772e6d6f652f683731666e372e706e67]
English animemester
malmon
nya?
Torrents
Posts: 1,083
Threads: 18
Joined: Nov 2015
Reputation: 12
10-22-2016, 06:20 PM
#61942 (5)
(10-22-2016, 02:08 PM)RX14 Wrote: (I wouldn't use C in serious code anyway...)

I am hurt

[Image: 68747470733a2f2f752e6e79612e69732f77757466626d2e6a7067]
RX14
Chibi Hentai Master
Optimist
Posts: 497
Threads: 5
Joined: Nov 2015
Reputation: 1
10-23-2016, 04:07 AM
#61958 (6)
(10-22-2016, 06:20 PM)malmon Wrote:
(10-22-2016, 02:08 PM)RX14 Wrote: (I wouldn't use C in serious code anyway...)

I am hurt

It's too easy to make mistakes in C when languages like Rust exist. If what you're doing isn't systems programming, languages like Crystal shine.

[Image: 68747470733a2f2f6177772e6d6f652f683731666e372e706e67]
English animemester
malmon
nya?
Torrents
Posts: 1,083
Threads: 18
Joined: Nov 2015
Reputation: 12
10-23-2016, 08:39 AM
#61964 (7)
(10-23-2016, 04:07 AM)RX14 Wrote:
(10-22-2016, 06:20 PM)malmon Wrote:
(10-22-2016, 02:08 PM)RX14 Wrote: (I wouldn't use C in serious code anyway...)

I am hurt

It's too easy to make mistakes in C when languages like Rust exist. If what you're doing isn't systems programming, languages like Crystal shine.

Aren't most hardware drivers and firmware written in C? Seems pretty serious to me :P

[Image: 68747470733a2f2f752e6e79612e69732f77757466626d2e6a7067]
KuroAku
lainchan
lainchan
Posts: 46
Threads: 1
Joined: Jul 2016
Reputation: 0
10-23-2016, 10:25 AM
#61968 (8)
(10-23-2016, 08:39 AM)malmon Wrote:
(10-23-2016, 04:07 AM)RX14 Wrote:
(10-22-2016, 06:20 PM)malmon Wrote:
(10-22-2016, 02:08 PM)RX14 Wrote: (I wouldn't use C in serious code anyway...)

I am hurt

It's too easy to make mistakes in C when languages like Rust exist. If what you're doing isn't systems programming, languages like Crystal shine.

Aren't most hardware drivers and firmware written in C? Seems pretty serious to me :P

You can write a firmware or a driver in any language that let's you use the same ABI as the platform. You can write a Linux kernel driver in Rust if you like. Or even in Go I think it will be possible too.
malmon
nya?
Torrents
Posts: 1,083
Threads: 18
Joined: Nov 2015
Reputation: 12
10-23-2016, 11:34 AM
#61971 (9)
(10-23-2016, 10:25 AM)KuroAku Wrote:
(10-23-2016, 08:39 AM)malmon Wrote:
(10-23-2016, 04:07 AM)RX14 Wrote:
(10-22-2016, 06:20 PM)malmon Wrote: I am hurt

It's too easy to make mistakes in C when languages like Rust exist. If what you're doing isn't systems programming, languages like Crystal shine.

Aren't most hardware drivers and firmware written in C? Seems pretty serious to me :P

You can write a firmware or a driver in any language that let's you use the same ABI as the platform. You can write a Linux kernel driver in Rust if you like. Or even in Go I think it will be possible too.

Though C does have the advantage of having a compiler on virtually any platform anyone might find themselves working on

[Image: 68747470733a2f2f752e6e79612e69732f77757466626d2e6a7067]
KuroAku
lainchan
lainchan
Posts: 46
Threads: 1
Joined: Jul 2016
Reputation: 0
10-23-2016, 06:28 PM
#61986 (10)
(10-23-2016, 11:34 AM)malmon Wrote:
(10-23-2016, 10:25 AM)KuroAku Wrote:
(10-23-2016, 08:39 AM)malmon Wrote:
(10-23-2016, 04:07 AM)RX14 Wrote: It's too easy to make mistakes in C when languages like Rust exist. If what you're doing isn't systems programming, languages like Crystal shine.

Aren't most hardware drivers and firmware written in C? Seems pretty serious to me :P

You can write a firmware or a driver in any language that let's you use the same ABI as the platform. You can write a Linux kernel driver in Rust if you like. Or even in Go I think it will be possible too.

Though C does have the advantage of having a compiler on virtually any platform anyone might find themselves working on

That's why C is still the king on systems programming
RX14
Chibi Hentai Master
Optimist
Posts: 497
Threads: 5
Joined: Nov 2015
Reputation: 1
10-24-2016, 04:38 AM
#61998 (11)
(10-23-2016, 08:39 AM)malmon Wrote:
(10-23-2016, 04:07 AM)RX14 Wrote:
(10-22-2016, 06:20 PM)malmon Wrote:
(10-22-2016, 02:08 PM)RX14 Wrote: (I wouldn't use C in serious code anyway...)

I am hurt

It's too easy to make mistakes in C when languages like Rust exist. If what you're doing isn't systems programming, languages like Crystal shine.

Aren't most hardware drivers and firmware written in C? Seems pretty serious to me :P

Just because C is a serious language, or that others use it for serious code doesn't mean i would use it for serious code (unless I have to) now that rust is mostly stable.

[Image: 68747470733a2f2f6177772e6d6f652f683731666e372e706e67]
English animemester