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New posts in undefined-behavior
Safely check if signed multiplication would overflow in C++17
Jul 20, 2026
c++
c++17
undefined-behavior
integer-arithmetic
qsort with size 0 undefined? [closed]
Jul 15, 2026
c
language-lawyer
undefined-behavior
qsort
How does shift operator work with negative numbers in c++
Jul 14, 2026
c++
undefined-behavior
bit-shift
Signed integer overflow undefined behavior
Jul 10, 2026
c++
language-lawyer
undefined-behavior
Wrong result of multiplication: Undefined behavior or compiler bug?
Jul 04, 2026
c++
visual-studio
visual-studio-2019
undefined-behavior
compiler-bug
Does forming a reference to an object constitute access?
Jun 30, 2026
c++
language-lawyer
undefined-behavior
null-pointer
reference-binding
Does this c++11 lambda code invoke undefined behavior?
Jun 28, 2026
c++
c++11
lambda
language-lawyer
undefined-behavior
Virtual Constructor Idiom - Virtuous Or Complete Utter Fallacy
Jun 27, 2026
c++
design-patterns
undefined-behavior
virtual-functions
idioms
Is this considered undefined behaviour in C/C++? [duplicate]
Jun 27, 2026
c++
c
undefined-behavior
Is it an UB when I try to pass the address of temporary as argument?
Jun 26, 2026
c++
undefined-behavior
Casting away const-ness of method
Jun 24, 2026
c++
constants
undefined-behavior
const-cast
Deal with project which may contain undefined behaviour
Jun 24, 2026
c++
undefined-behavior
Undefined behavior in Python
Jun 22, 2026
python
python-3.x
undefined-behavior
Swapping `std::aligned_storage` instances containing non-trivially-copyable types - undefined behavior?
Jun 19, 2026
c++
language-lawyer
swap
undefined-behavior
c++14
Skipping switch cases via false loop is a valid operation?
Jun 20, 2026
c
c99
undefined-behavior
When is reinterpret_cast UB?
Jun 16, 2026
c++
language-lawyer
c++20
undefined-behavior
reinterpret-cast
Is it undefined behavior to dereference a *mut T cast to *mut ManuallyDrop<T>?
Jun 17, 2026
rust
undefined-behavior
unsafe
raw-pointer
"The implementation may assume X" implies undefined behavior when X does not hold?
Jun 15, 2026
c++
language-lawyer
undefined-behavior
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