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New posts in undefined-behavior

Does the 'offsetof' macro from <stddef.h> invoke undefined behaviour?

c++ undefined-behavior offsetof

Why is locking a std::mutex twice 'Undefined Behaviour'?

c++ c++11 mutex undefined-behavior

Behaviour of arr[i] = i++ and i = i + 1 statements in C and C++

c++ c c++14 undefined-behavior sequence-points

Why does a consteval function allow undefined behavior?

c++ undefined-behavior c++20 consteval

Returning a local partially initialized struct from a function and undefined behavior

c struct language-lawyer undefined-behavior c11

When a float variable goes out of the float limits, what happens?

c++ c floating-point undefined-behavior numeric-limits

Is it allowed to cast away const on a const-defined object as long as it is not actually modified?

c++ constants undefined-behavior const-cast

Is it undefined behavior to use functions with side effects in an unspecified order?

c undefined-behavior

Does an expression with undefined behaviour that is never actually executed make a program erroneous?

c++ language-lawyer undefined-behavior

May I take the address of the one-past-the-end element of an array? [duplicate]

c++ arrays pointers undefined-behavior

Can I use [[noreturn]] on non-void returning functions?

c++ c++11 return undefined-behavior noreturn

Is using a member function as an argument to a constructor undefined behavior?

c++ undefined-behavior

Standard reference for int foo = foo

c++ undefined-behavior

Why does a program accessing illegal pointer to pointer not crash?

c undefined-behavior

Is the behaviour of casting a negative double to unsigned int defined in the C standard? Different behaviour on ARM vs. x86

c casting floating-point type-conversion undefined-behavior

GOTO before local variable

c declaration undefined-behavior goto

Is undefined behavior worth it?

c++ undefined-behavior

Consequences of uninitialised variables: int vs unsigned char

c++ initialization language-lawyer undefined-behavior

Does C have an equivalent of std::less from C++?

c pointers undefined-behavior memory-model memory-segmentation

Is this infinite recursion UB?

c++ recursion c++11 undefined-behavior
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