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New posts in undefined-behavior

How can a literal 0 and 0 as a variable yield different behavior with the function __builtin_clz?

c++ gcc assembly undefined-behavior intrinsics

How to catch glaring undefined behavior statically?

c++ undefined-behavior clion

Is incrementing a _Bool defined?

c boolean increment undefined-behavior

Is reading an uninitialized value always an undefined behaviour? Or are there exceptions to it?

c initialization undefined-behavior

Is the expression (a=b) = k UB?

c++ expression undefined-behavior

operation on 'i' may be undefined [duplicate]

c undefined-behavior sequence-points

Is using an assignment operator in a function argument undefined behaviour?

c++ undefined-behavior operator-precedence

Is rightshifting signed int by 8 * sizeof(int) or more undefined?

c undefined-behavior bit-shift

constexpr and undefined behavior

c++ language-lawyer undefined-behavior constexpr

Write to uninitialized variable: undefined behaviour?

c++ undefined-behavior

Is it safe to do something like foo(x, &x)?

c language-lawyer undefined-behavior

Is it undefined behavior to mutate an immutable local variable?

rust immutability undefined-behavior

lambda: should capturing const reference by reference yield undefined behaviour?

c++ lambda c++11 undefined-behavior

Is the right-hand side of an assignment always evaluated before the assignment?

python python-2.7 undefined-behavior operator-precedence

Undefined behaviour of right shift (a >> b) when b is greater than the number of bits in a?

c++ c undefined-behavior bit-shift c++14

Why doesn't the compiler warn you if there is possible Undefined Behaviour?

c++ undefined-behavior

Does joining a member thread accessing other members of its parent class in the parent's destructor result in undefined behavior?

c++ multithreading c++11 language-lawyer undefined-behavior

Is transmuting bytes to a float safe or might it produce undefined behavior?

floating-point rust undefined-behavior

Is modifying an object through a pointer to const undefined behavior?

c pointers constants language-lawyer undefined-behavior

is bit_cast without compiler support for constexpr memcpy possible?

c++ undefined-behavior constexpr c++20 type-punning
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