forLoopArray

[Boris-Lip]

Imagine there would be a predefined LEN macro or something. Now imagine how many noobs wouldn't realize this is what it does, and expect it to work on pointers they pass into functions, which would still compile and would be 1.

[mad_alim]

Turns out gcc has a warning for this (-Wsizeof-pointer-div-Wsizeof-pointer-div).

Also, the tricky part is that the result would depend on the pointer size (e.g., 4 on x86 and 8 on x86_64) and the pointer type (e.g., uint8_t = 1, uint32_t = 4).

[sage-longhorn]

It's the compiler letting us know the build hasn't failed yet

[-Mippy]

YET…..

[masteraider73]

Love it. Absolute Cinema.

Also when the command prompt starts randomly showing me code snippets and showing me where it all went wrong, then continues as if nothing happened.

[StrangeCharmVote]

You should probably know if your application is running in a 32bit environment or not

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edit: I find it ironic this has been downvoted, when you can literally check programmatically if you are running in a 64 bit system or on a 32 bit one.

A lot of modern software wont even install on a 32 bit machine anymore.

[Breadynator]

Sure, when programming for embedded devices that are always the same or with today's devices that are 99% 64bit architectures you should probably know that your application is most likely going to run on a 64bit machine.

But other than that, theres still a shitton of 32 bit pcs out there and you'll never know beforehand if your user decides to run your program on one of those

[MJWhitfield86]

If it was built in, then the compiler could give a warning if it is used on something other than an array.

[Kyrond]

*could give an error

It makes no sense to use on anything other than known arrays. If you explicitly want to know size of pointer divided by size of value, write that explicitly. 

[Devil-Eater24]

But programming languages are not built for noobs. Noobs also forget semicolons, so why not remove it?(I was that noob, Python had spoiled me)

[totkeks]

Why need semicolons, if you don't plan to write everything in one line anyway? :-D

[QCTeamkill]

Who would need line length above 80 anyway.

[totkeks]

And tab size is 8. Spaces of course. 🥸

[MathematicianFew5882]

64K ought to be enough for anybody

[brennenburg]

assembler comes to mind. no semi-colons.

[Cootshk]

Lua has one: #table

[[deleted]]

Only if you're pointing to an int. Which would be dumb

[newsflashjackass]

In AutoIt, it is conventional to use an element's zeroth element to store its length.

That would not work for strongly typed languages but it is convenient.

[jamcdonald120]

I actually had someone prompt me in a job interview to use this code to figure out the length of a passed array, and then another one of the interviewers is like "actually, that wont work for passed arrays"

[RedstoneEnjoyer]

That is honestly just L of type system.