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New posts in undefined-behavior

initial or terminal malloc buffer possible?

c for-loop pointers malloc undefined-behavior

Why does static_cast conversion speed up an un-optimized build of my integer division function?

c++ assembly type-conversion x86-64 undefined-behavior

Does calling an empty function in C invoke UB?

c undefined-behavior

Out of bounds pointer arithmetic not detected?

c++ undefined-behavior

Will gcc skip this check for signed integer overflow?

c++ gcc undefined-behavior integer-overflow

Modifying object representation in presence of padding bits

c++ language-lawyer c++20 undefined-behavior bit-cast

How can I move std::tuple elements out of a class object?

c++ c++14 undefined-behavior move-semantics stdtuple

Is signed integer overflow undefined behaviour or implementation defined?

c undefined-behavior implementation-defined-behavior

Is INT_MIN * -1 a no-op on x86?

x86 undefined-behavior signed integer-overflow

Is using enum class for flags undefined behavior?

c++ c++20 undefined-behavior enum-class

Is it undefined behavior in C to cast function pointers operating on derived structs up to functions operating on the base type?

c struct casting function-pointers undefined-behavior

Does casting to an unrelated reference type violate the strict aliasing rule?

c++ language-lawyer undefined-behavior reinterpret-cast strict-aliasing

Unexpected memcpy on uncopyable & unmovable type when using co_await

c++ undefined-behavior copy-elision c++-coroutine
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