undefined-behavior

376 Questions
Newest Active Unanswered Frequent
Score
View
Card Compact
Is the following C union access pattern undefined behavior?
user_40226170
•
10
5
761
type-punning undefined-behavior language-lawyer unions c
Is a program well defined before the line that causes undefined behavior?
user_66994330
•
4
1
138
undefined-behavior c
How to correctly use std::arch::_mm_loadu_si128 / _mm_storeu_si128
user_27656030
•
3
1
543
rust undefined-behavior simd memory-alignment
Valgrind shows memory leak in std::make_unique
user_74310050
•
23
1
2774
unique-ptr undefined-behavior virtual-destructor memory-leaks c++
Why isn't it undefined behaviour to destroy an object that was overwritten by placement new?
knatten_70840
•
10
4
413
object-lifetime placement-new undefined-behavior language-lawyer c++
Does dereferencing void**-casted type** break strict aliasing?
user_19871780
•
3
1
130
strict-aliasing undefined-behavior c
Is `reinterpret_cast`ing between hardware SIMD vector pointer and the corresponding type an undefined behavior?
user_63701280
•
7
2
1676
intrinsics undefined-behavior language-lawyer x86 c++
Is this C++ member initialization behavior well defined?
user_100656810
•
20
2
1812
undefined-behavior default-constructor initialization constructor c++
Is it undefined behavior to read and compare padding bytes of a POD type?
user_5986960
•
12
3
915
standard-layout undefined-behavior language-lawyer padding c++
Is using a structure without all members assigned undefined?
user_2982250
•
12
4
933
undefined-behavior language-lawyer struct c
Hot Questions