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Hate when it happens (lemmy.kde.social)
submitted 2 years ago by tubbadu@lemmy.kde.social to c/memes@lemmy.ml
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[-] TimeSquirrel@kbin.social 11 points 2 years ago* (last edited 2 years ago)

Me still learning C++ and traversing a file path string and adding each subdirectory to a vector so I can pop them off later and move back up to the root one dir at a time.

I am still figuring out why it's crashing. Been two days. I think half my code is just print statements now, all saying "here", "here now", "now running blahblah()"

This shit can make you feel so stupid sometimes. Because this has been a solved problem for half a century. Coding is definitely an exercise in tolerance for failure and frustration.

[-] inetknght@lemmy.ml 1 points 2 years ago

iterators are invalidated when you push/pop a vector

[-] TimeSquirrel@kbin.social 3 points 2 years ago* (last edited 2 years ago)

I'm just using "[n]" to access each element and ".size()" to make sure I don't go over. Solved it now, was an off-by-one mistake deep in some other function I didn't catch. I was trying to access an element in the vector that didn't exist yet.

I have been playing with STL's built in iterators, but still in the process of learning how to use them. Thanks for the heads up though!

this post was submitted on 17 Jan 2024
333 points (96.4% liked)

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