EXC_BAD_ACCESS

[civic flicker]

Hello, I was programming a quick AI that predicts the next letter in a text. It worked great, but I was using vectors. Vectors are slow. I replace everything with arrays, and there you go, Thread 1: EXC_BAD_ACCESS (code=2, address=0x16f603ff8).

I am a complete beginner with c++ and may have done some stupid thing / may have missed something obvious.

I just cannot track down where the error comes from.
File is given. I use Xcode.

[hexed pagoda]

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[civic flicker]

Oh btw the error message is display next to int main() { but thats surely not where it comes from

[spice shell]

vectors are slow
No, vectors aren't slow. But even slow code is better than code that causes EXC_BAD_ADDRESS

Run your program in the debugger and it will tell you which line causes the problem.

Your code does not compile

error: ‘bitset’ is not a member of ‘std’
   85 |             std::bitset<128> buffer;
      |                  ^~~~~~

note: ‘std::bitset’ is defined in header ‘<bitset>’; did you forget to ‘#include <bitset>’?

[spice shell]

Your arrays are too big. reduce betweenLayers to about 220

[green verge]

sounds to me like you were probably passing the vectors by value

[civic flicker]

No i was passing &vector

[civic flicker]

Bruh its not a line i forgot to copy i actually didnt include that in my imports

And xcode didnt provide me with that information

[spice shell]

That's a line of output from GCC when it tried and failed to compile your code

[civic flicker]

Yeah i know, it says std::bitset is undefined and then it tells you that maybe importing <bitset> is a good idea if you use bitsets💀

And I did not import <bitset> in my code

[civic flicker]

Well, it worked when I set betweenlayers to a value smaler than 478

fun fact: before changing to arrays, it worked with betweenLayers = 7000

I must have a humongus memory leak somewhere

WAIT

xcode moved its ass and finally told me what produced the error

std::mt19937 generator(rd());

rd() produces the error

std::random_device rd;
    std::mt19937 generator(rd());
    std::uniform_real_distribution<double> distribution(-maxVariance, maxVariance);

[civic flicker]

Ok so I fixed the random thingy

Now it works when I set betweenLayers to a value smaller than 479 instead of 478 yayyyy

[civic flicker]

yeah, it doesnt

I can put breakpoints wherever I want its not telling me anything

I think I'm rolling back to arrays at this point

*vectors