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New posts in undefined-behavior

Is it undefined behavior to have two pointers with different values referring to the same object?

c++ operating-system undefined-behavior memory-address

How can (x+1) > x evaluate to both 0 and 1?

c++ c undefined-behavior

Why the output of `printf("%llu\n", 1ull << n);` and `printf("%llu\n", 1ull << 64);` is different in C++? (n=64) [duplicate]

c++ c undefined-behavior bit-shift

Is accessing an element of a multidimensional array out of bounds undefined behavior?

c arrays multidimensional-array undefined-behavior

Does freeing an int* which was assigned to a char* (allocated by `malloc`) invoke Undefined Behavior?

c pointers memory free undefined-behavior

Pointer arithmetic using cast to "wrong" type

c++ language-lawyer undefined-behavior pointer-arithmetic

Does this code in C fall into the Undefined Behavior category?

c arrays language-lawyer increment undefined-behavior

Turbo C++: Why does printf print expected values, when no variables are passed to it?

c printf undefined-behavior turbo-c

Why is it that we can write outside of bounds in C?

c++ c malloc undefined-behavior

What is the significance of special language in standard for lvalue-to-rvalue conversions for unsigned character types of indeterminate value

c++ c++14 language-lawyer undefined-behavior lvalue-to-rvalue

Is it allowed to print the address of a dangling reference?

c++ reference language-lawyer undefined-behavior

Are static locals of function template specializations with T=<unnamed namespaced class> required to be unique?

c++ templates static undefined-behavior icc

`u8string_view` into a `char` array without violating strict-aliasing?

c++ undefined-behavior c++20 strict-aliasing

What can I assume about the behaviour of atoi() on error?

c language-lawyer undefined-behavior atoi

How can calling a function pointer saved from a previous execution fail?

c++ undefined-behavior

How can I read a signed integer from a buffer of uint8_t without invoking un- or implementation-defined behaviour?

c++ undefined-behavior implementation-defined-behavior

C++ function attribute to indicate lifetime of return value is same as argument

c++ gcc g++ undefined-behavior

Does std::ptr::write transfer the "uninitialized-ness" of the bytes it writes?

rust initialization undefined-behavior unsafe

Is calling a "noexcept function" through a "function" lvalue undefined?

c++ language-lawyer function-pointers undefined-behavior noexcept
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