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New posts in undefined-behavior
Does taking address of member variable through a null pointer yield undefined behavior?
Oct 30, 2022
c++
offset
undefined-behavior
Is mem::forget(mem::uninitialized()) defined behavior?
Mar 30, 2022
rust
undefined-behavior
unsafe
Is it undefined behavior to read and compare padding bytes of a POD type?
Feb 09, 2022
c++
language-lawyer
padding
undefined-behavior
standard-layout
Does the confliction between declaration and definition cause undefined behavior?
Jul 25, 2021
c++
c
language-lawyer
undefined-behavior
Is this code really undefined, as Clang seems to indicate?
Mar 17, 2022
c++
clang
undefined-behavior
libstdc++
sanitizer
Why is this simple assignment undefined behaviour?
Jan 11, 2020
c++
undefined-behavior
value-initialization
Assignment operator sequencing in C11 expressions
Sep 23, 2022
c
expression
language-lawyer
undefined-behavior
c11
Array declared as int v[100] but &(v[100]) gives no warning
Feb 28, 2022
c
arrays
clang
undefined-behavior
Rationale of restrictive rules for extract and re-insert with map
Sep 11, 2021
c++
language-lawyer
c++17
undefined-behavior
Can I use rvalue reference to temporary? Is it undefined behavior or not?
Feb 01, 2022
c++
c++11
language-lawyer
undefined-behavior
rvalue-reference
Is Python's bool sorting defined?
Oct 23, 2022
python
sorting
undefined-behavior
C - is an indeterminate value indeterminable?
Oct 17, 2022
c
undefined
language-lawyer
undefined-behavior
How much does the C standard library extensibility affect C++ programs?
Sep 22, 2022
c++
c
language-lawyer
undefined-behavior
reserved-words
Is it undefined behavior to exceed translation limits and are there checker tools to find it?
Dec 20, 2015
c
standards
undefined-behavior
standards-compliance
c89
Different results for idiv instruction
Nov 13, 2022
c
undefined-behavior
mingw-w64
integer-division
Segmentation fault on gcc caused by lambda wrapper over variadic template function call
Mar 05, 2021
c++
segmentation-fault
c++14
undefined-behavior
ubsan
Is it well-defined behaviour to exit the program before main?
Feb 13, 2022
c++
exit
main
undefined-behavior
Is this downcasting undefined?
Feb 10, 2022
c++
undefined-behavior
downcast
Non-trivial example of undefined behavior with const_cast
Apr 07, 2022
c++
undefined-behavior
Are non-terminating constexpr functions well-defined?
Jan 17, 2019
c++
infinite-loop
undefined-behavior
constexpr
c++14
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