New posts in undefined-behavior

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

c++ c arrays undefined-behavior

Why does char* cause undefined behaviour while char[] doesn't?

c string char undefined-behavior

At what point in the loop does integer overflow become undefined behavior?

c++ c undefined-behavior integer-overflow

Is the output of printf ("%d %d", c++, c); also undefined?

c undefined-behavior

Are multiple mutations of the same variable within initializer lists undefined behavior pre C++11

c++ language-lawyer undefined-behavior initializer-list

Why does printf("%f",0); give undefined behavior?

c++ c printf implicit-conversion undefined-behavior

Can branches with undefined behavior be assumed unreachable and optimized as dead code?

c++ language-lawyer undefined-behavior dead-code unreachable-code

When is casting between pointer types not undefined behavior in C?

c casting undefined-behavior

Why does the first element outside of a defined array default to zero?

c++ arrays initialization undefined-behavior zero-initialization

Printing null pointers with %p is undefined behavior?

c language-lawyer c99 undefined-behavior c11

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

c++ initialization undefined-behavior variable-declaration

Are multiple mutations within initializer lists undefined behavior?

c++ c++11 undefined-behavior initializer-list

How to implement memmove in standard C without an intermediate copy?

c c99 undefined-behavior unspecified-behavior

Is using malloc for int undefined behavior until C++20

c++ malloc undefined-behavior c++20

Why is it undefined behavior to delete[] an array of derived objects via a base pointer?

c++ undefined-behavior dynamic-arrays delete-operator

Are memory leaks "undefined behavior" class problem in C++?

c++ memory-management memory-leaks undefined-behavior

Is this infinite recursion UB?

c++ recursion c++11 undefined-behavior

How undefined is undefined behavior?

c undefined-behavior language-lawyer

Is passing a C++ object into its own constructor legal?

c++ class constructor language-lawyer 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