Null

Post by jannes » Thu, Jan 14, 2021, 9:26 AM UTC

masklinn wrote: post #42

deathanatos wrote: post #10

I worked on an API that regularly got requests from the mobile app for GET /users/(null). I think that's Swift, or Obj-C's way of to-string'ing a null? I have a generational suffix on my name. I often include it, and quite often as the proper Unicode character, e.g., "Ⅲ". (Assuming HN displays it after I post this, try to select it; that's one character.) That wreaks a fair bit of havoc. When I was in high-school, I…

> Every now and then a dev will make a branch with "BranchPrefix/" and the OS X machines all start having issues since OS X's file hierarchy isn't case sensitive. (We've also had issues w/ two files, same name different case. git supports it, but OS X can't cope.) FWIW macOS is perfectly fine with it. The FS (both HFS+ and APFS) can be configured to work in CI or CS modes. The default is CI. Since git uses the FS for…

Post by jannes » Thu, Jan 14, 2021, 9:32 AM UTC

zinekeller wrote: post #22

deathanatos wrote: post #10

I worked on an API that regularly got requests from the mobile app for GET /users/(null). I think that's Swift, or Obj-C's way of to-string'ing a null? I have a generational suffix on my name. I often include it, and quite often as the proper Unicode character, e.g., "Ⅲ". (Assuming HN displays it after I post this, try to select it; that's one character.) That wreaks a fair bit of havoc. When I was in high-school, I…

> Just today, Azure's support system can't handle (among many things) the outlandish characters of " ". Which is great fun, since it's not like anyone would file a highly-technical support request with Azure… right? Someone in Azure is definitely using the Windows reserved characters for filenames.

Post by MauranKilom » Thu, Jan 14, 2021, 9:37 AM UTC

colejohnson66 wrote: post #17

saagarjha wrote: post #12

Earlier quoted context omitted.

That’s how C usually prints it. Swift will print “nil”.

I was curious, so I tested that[0], and 3 of the 4 major compilers (clang, gcc, and ICC) all output `(nil)` for a `%p` on a null pointer, but `(null)` for a `%s`. Godbolt doesn't support executing MSVC for some reason. However, it is my understanding that passing a non-null pointer to printf for `%s` is undefined behavior. [0]: https://godbolt.org/z/7K5qWv

Post by huffmsa » Thu, Jan 14, 2021, 9:50 AM UTC

msh wrote: post #28

pixl97 wrote: post #7

>While I’m not a QA or security professional, I have developed a knack for doing “stupid” things with software which causes it to malfunction. A person after my own heart. I've had many a dev go "why would you do that" In which I answer "it doesn't matter, but if you accept my input it's your job to ensure the app doesn't crash"

Why do you require software to be more resilient than other things? If I pour water in the gastank of my car, it will also fail to drive. Or gas in the sprinkler tank. So the car should somehow prevent the enduser putting the wrong thing in the tank?

Post by bzb6 » Thu, Jan 14, 2021, 9:52 AM UTC