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New posts in undefined-behavior

Is `reinterpret_cast`ing between hardware SIMD vector pointer and the corresponding type an undefined behavior?

c++ x86 language-lawyer undefined-behavior intrinsics

Infinite loop vs infinite recursion. Are both undefined?

c++ loops recursion language-lawyer undefined-behavior

A function declared to return int returns nothing. Is this Undefined Behavior?

c++ function undefined-behavior

What happens when a rep-prefix is attached to a non string instruction?

string assembly x86 undefined-behavior

Is casting to simd-type undefined behaviour in C++? [duplicate]

c++ sse undefined-behavior simd intrinsics

Sequence point from function call?

c++ c undefined-behavior sequence-points

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
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