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New posts in undefined-behavior

Is the 16-bit math in this program invoking undefined behavior?

c++ language-lawyer undefined-behavior msvc14

Using std::launder to get a pointer to an active union member from a pointer to an inactive union member?

c++ pointers language-lawyer c++17 undefined-behavior

Comparing two string literals using memcmp

c language-lawyer undefined-behavior string-literals memcmp

Does put_money hold its argument by value or reference?

c++ undefined-behavior iomanip

Comma operator and void expression

c++ c undefined-behavior comma-operator

Is calling a function on a NULL pointer undefined? [duplicate]

c++ undefined-behavior

Can integer division ever over/underflow, assuming the denominator <>0? [duplicate]

c undefined-behavior division integer-division

Is returning a forward-declared structure undefined behavior?

c++ visual-c++ 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
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