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New posts in undefined-behavior

Is SSE2 signed integer overflow undefined?

c language-lawyer undefined-behavior sse2

Swap integers via XOR in single line. Is it really allowed in c++11?

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

Rationale for pointer comparisons outside an array to be UB

c pointers language-lawyer undefined-behavior

Code crashes when derived class' destructor is virtual and base class' dtor is not

c++ gcc crash undefined-behavior virtual-destructor

Why is writing to a non-const object after casting away const of pointer to that object not UB?

c++ constants undefined-behavior const-correctness const-cast

Is the behavior of i = post_increment_i() specified, unspecified, or undefined?

c language-lawyer undefined-behavior operator-precedence sequence-points

Is there any guarantee about whether code with UB should be reachable?

c++ visual-c++ compiler-optimization undefined-behavior

How can both (i + 1) < ii and (i + 1) > ii both be true?

c undefined-behavior integer-overflow

Why is initialization of a new variable by itself valid? [duplicate]

c++ initialization undefined-behavior variable-declaration

Undefined behaviour of operators in XOR swap algorithm?

c++ c operators swap undefined-behavior

Incrementing NULL pointer in C

c pointers null undefined-behavior

Macros and postincrement

c macros undefined-behavior

Is printing a null-pointer Undefined Behavior?

c++ iostream undefined-behavior null-pointer

Why does (*p=*p) & (*q=*q); in C trigger undefined behavior

c pointers undefined-behavior sequence-points

Is accessing data outside an array incorrect if you don't use it?

c++ c arrays undefined-behavior

Passing non-lvalue as const reference argument. Is the temp created in local scope or caller scope?

c++ reference undefined-behavior

Is using const_cast for read-only access to a const object allowed?

c++ casting constants undefined-behavior const-cast

behavior of const_cast in C++ [duplicate]

c++ undefined-behavior const-cast

The lifetime of a reference with regard to its target

c++ reference undefined-behavior object-lifetime

Example of error caused by UB of incrementing a NULL pointer

c++ undefined-behavior
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