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New posts in undefined-behavior

Bug in quicksort example (K&R C book)?

c integer-overflow qsort undefined-behavior

Does QObject distinguish between stack and heap allocated children when deleting?

c++ qt memory-management undefined-behavior qobject

Does comparing a pointer that has been free'd invoke UB?

c undefined-behavior hexchat

std::vector<T>::assign using a subrange valid?

c++ undefined-behavior

Can incrementing a pointer without dereferencing still segfault or have other (un)defined nastiness?

c++ pointers memory-management segmentation-fault undefined-behavior

IEEE-754 floating point computations, equality and narrowing

c++ floating-point undefined-behavior ieee-754

Is this use of std::array undefined behavior? [duplicate]

c++ c++11 undefined-behavior

Is this undefined behavior or a false positive warning?

c++ constructor undefined-behavior clang++

Is pointer comparison undefined or unspecified behavior in C++?

c++ pointers undefined-behavior unspecified-behavior

Is this code well-defined regardless of copy elision?

c++ undefined-behavior copy-elision

Why is PHP selecting the Random Values like that?

php arrays random undefined-behavior

Is `C == C++` undefined behaviour?

c++ undefined-behavior

Convert a uint32_t to an int32_t without either a risk of overflow or excessive complexity

c++ undefined-behavior

Casting a char array to an object pointer - is this UB?

c++ pointers c++14 undefined-behavior

At what point does dereferencing the null pointer become undefined behavior?

c++ object null undefined-behavior dereference

If the value of an uninitialized variable shouldn't affect the value of an expression, is it still UB?

c initialization undefined-behavior

Load of misaligned address and UBsan finding

c clang undefined-behavior memcpy ubsan

Is the following C union access pattern undefined behavior?

c language-lawyer undefined-behavior unions type-punning

Can guaranteed UB be rejected at compile-time?

c++ c language-lawyer undefined-behavior

Undefined behavior: when attempting to access the result of function call

c c99 undefined-behavior function-calls
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