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New posts in undefined-behavior

`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

Can one element of a tuple reference another?

c++ c++11 tuples undefined-behavior

Is it okay for int** and const int** to alias?

c constants language-lawyer undefined-behavior strict-aliasing

How is gcc optimizing this loop?

c++ gcc g++ compiler-optimization undefined-behavior

Is modifying the internal bytes of a const object undefined behavior in case it contains another object constructed by placement new?

c++ standards undefined-behavior placement-new

How to synchronize multithreaded OpenGL buffer access?

multithreading opengl gpu undefined-behavior vbo

Is it well-defined behavior to modify one element of an array while another thread modifies another element of the same array?

c synchronization pthreads undefined-behavior

Dealing with undefined behavior when using reinterpret_cast in a memory mapping

c++ undefined-behavior reinterpret-cast memory-mapping

TDD: Test member initialization deterministically, given undefined behavior in C++

c++ unit-testing tdd undefined-behavior googletest

Undefined behavior, or: Does Swift have sequence points?

swift undefined-behavior sequence-points

Cast T[][] to T*

c arrays pointers undefined-behavior

Is it safe and defined behavior to transmute between a T and an UnsafeCell<T>?

rust undefined-behavior unsafe

Where is the undefined behavior when using const_cast<>?

c++ undefined-behavior const-cast

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

c++ language-lawyer undefined-behavior msvc14
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