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New posts in undefined-behavior

Is a misaligned load due to a cast undefined behavior?

c casting undefined-behavior memory-alignment

Is there a way, in tests, to defend against "correct" results coming out of undefined behavior?

c++ unit-testing googletest undefined-behavior

Why in Ruby, a || 1 will throw an error when `a` is undefined, but a = a || 1 will not?

ruby exception undefined undefined-behavior

Does this const initialization through const_cast have undefined behaviour?

c++ initialization undefined undefined-behavior const-cast

Is full followed by partial initialization of a subobject undefined behavior?

c initialization undefined-behavior

How to suppress some unsigned-integer-overflow errors from UBsan?

c++ undefined-behavior ubsan

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
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