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New posts in undefined-behavior

Is this code well-defined regardless of copy elision?

Why is PHP selecting the Random Values like that?

Is `C == C++` undefined behaviour?

c++ undefined-behavior

Convert a uint32_t to an int32_t without either a risk of overflow or excessive complexity

c++ undefined-behavior

Casting a char array to an object pointer - is this UB?

At what point does dereferencing the null pointer become undefined behavior?

If the value of an uninitialized variable shouldn't affect the value of an expression, is it still UB?

Load of misaligned address and UBsan finding

Is the following C union access pattern undefined behavior?

Can guaranteed UB be rejected at compile-time?

Undefined behavior: when attempting to access the result of function call

how to check that behavior is undefined in c?

Assignment and pointers, undefined behavior?

Is it undefined behavior to pass-by-reference uninitialized variable?

Access array beyond the limit in C and C++ [duplicate]

How to prevent overflow when using usual math functions exp() log()?

c++ c undefined-behavior

printf() with no arguments in C compiles fine. how?

c printf undefined-behavior

Is it illegal to use the h or hh length modifiers when the corresponding argument to printf was not a short / char?