How to preallocate cstring for FFI call that fills it up

How to preallocate cstring for FFI call that fills it up

> A C program would record the amount of memory it allocates, because there's > no way to retrieve this information. A traditional method is to use zero or > null as the last element (which is why Nim cstrings end with 0), but it hurts > speed. I am not sure what you are trying to tell me. I kn

How to preallocate cstring for FFI call that fills it up

> Can you tell me where I should have found this information in the manual? > Because I had been searching for something like this. There is no explicit mention but says > The terminating zero cannot be accessed unless the string is conv

How to preallocate cstring for FFI call that fills it up

> ... Which indirectly states "Hey you can use Nim strings as Cstrings anywhere > you can do char* or char*, SomeInt len in C" That's great information, thanks. > ... they're nil terminated, but there is no certain way to retrieve length > from a cstringarray Feels like a flaw to me... I can f

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How to preallocate cstring for FFI call that fills it up

For completeness: I had to reduce the length by 1 because OpenGL returns the length including the 0 character, making the string contain two 0 characters at the end. >From >: > GL_INFO_LOG_LENGTH > > params returns the

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How to preallocate cstring for FFI call that fills it up

When you have a C library that populates a string it is good practice to use `setLen` on the string afterwards. Most of these APIs returns the amount of bytes actually written (in this case by the `length` parameter to `glGetActiveUniform` as long as it is not `nil` as in your case. This reports

Tesseract and Leptonica

Interesting project! Just out of curiosity, is there a reason why you don't just automatically generate the C bindings with Futhark?

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Austral (a simple-ish language with a linear type system)

Dumb question from someone who is not a programmer, but a statistician. Why the proud anti-features list now? The no overloading from zig and this language, should make stuff like matrix algebra a pain to code, no?

Warning: method has lock level , but another method has 0 [LockLevel]

Hello from the future! I'm using Nim 1.6 at the moment, moving to 2.0 soon. I'm targeting a single core system without threading and would like to turn off the locklevel warning project-wide. 1. Is it true that this whole concept is gone or deprecated in v2? 2. This doesn't work when I stic

How to preallocate cstring for FFI call that fills it up

> Feels like a flaw to me... I can find out the length by iterating the > cstrings in the array until I arrive at nil, I feel like this should already > be there. Welcome to why sentinel terminated collections were replaced with pascal collections. To encode the length you need more data and th

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Austral (a simple-ish language with a linear type system)

> Why the proud anti-features list now? Because language designers are trolls who don't understand IDEs are a thing and can be used for navigation. ;-)

Tesseract and Leptonica

Badass. I was just having heart palpitations thinking that I had to wrap this on my own :)

Tesseract and Leptonica

I just have simply more experience with `nimterop` (the first one I used), and now I end up using most of the times `c2nim`. Given that sometimes both fails I end up using `c2nim` and `nimterop` in order to get inspiration about how to get thinks working. I tried `cinterop` once, but I think it

Tesseract and Leptonica

hahaha Thank you. By the way, I don't have any problem about transfering the ownership of both projects. I have a bad record about maintaining stuff!

JS bindings question - Quill

I was just experimenting with [Quill](https://quilljs.com/) trying to use it from Nim. I managed to get it working with Neel. But I am struggling with what they call [Blot](https://github.com/quilljs/parchment). I tried with: type BlotObj* = JsObject Run and

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JS bindings question - Quill

Given that it's `static` one must emit `Blot.blotName` so the correct import is likely proc blotName(_: typedesc[Blot]): cstring {.importJs: "Blot.blotName".} Run

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Tesseract and Leptonica

do what the error suggests, increase `--maxLoopIterationsVM:number` (current value: 1000)` I always have to add a zero or two when using futhark I futhark is based on clang compiler. If it compiles with clang, it is very likely that futhark will generate low level bindings successfully

forum mirror

What did you build it with? I assume you used Nim, so I'm asking about libraries. As for usefulness, I've found myself annoyed at a lack of no-JS post viewing when viewing historical posts on web.archive.org, so I think the Wayback Machine will make it more useful. As a side note, I had no ide