The std::sort function, which was not problematic until version 15.2, causes a crash, perhaps because of a modified [The performance of std::sort and std::ranges::sort was improved by up to 50% for arithmetic types (120908845)] entry in xcode 15.3.

Question

For your information, std::vector contained instances of the class I had written, and I was comparing them through a custom Comp function.

However, items that should not be null are recognized as null and crash as a null reference.

Please check it and return it.

Xcode

101

Posted by

PIRUA

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Answer 1

This bug is happening for me in one specific location where I use std::sort on a vector of pointers out of nearly 200. I haven't been able to identify what specifically triggers this bad behavior, have you?

Posted by

khootman

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Answer 2

Actually, I was just able to identify my issue as a comparator that didn't QUITE meet the requirements. The old implementation of std::sort was testing elements in an order where my comparator never exhibited its lack of strict ordering. I'm not 100% sure this is what OP is experiencing but if you see this, check your comparator carefully.

Posted by

khootman

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The std::sort function, which was not problematic until version 15.2, causes a crash, perhaps because of a modified [The performance of std::sort and std::ranges::sort was improved by up to 50% for arithmetic types (120908845)] entry in xcode 15.3.

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