undefined-behavior

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Can partial_sort's middle iterator equal the end iterator?
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91
undefined-behavior sorting c++
Is it safe to reinterpret_cast<const char*> any struct that starts with a char[size] member?
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2
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180
undefined-behavior reinterpret-cast c++
Miri complains about UB when initializing and manually dropping MaybeUninit
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3
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249
rust undefined-behavior
Undefined behavior in C
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91
sequence-points undefined-behavior c
Is it ever safe to reinterpret_cast the address of a variable to the address of a union?
user_151509720
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0
124
c++17 undefined-behavior reinterpret-cast unions c++
FLT_HAS_SUBNORM is 0: does execution of fpclassify() with manually constructed subnormal lead to UB or lead to WDB returning FP_SUBNORMAL?
user_17782750
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3
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106
math.h undefined-behavior language-lawyer floating-point c
Is it undefined behavior to mutate an immutable local variable?
user_146420880
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4
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215
rust undefined-behavior immutability
Why can't the C compiler optimize changing the value of a const pointer assuming that two pointers to the same variable would be illegal/UB?
user_38491580
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3258
rust strict-aliasing undefined-behavior c
Undefined Behaviour in C99 related to adjusted parameters
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7
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157
undefined-behavior language-lawyer c99 implicit-conversion c
Is calling a "noexcept function" through a "function" lvalue undefined?
user_49177250
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108
noexcept undefined-behavior language-lawyer function-pointers c++
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