strict-aliasing

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How does GCC (not clang) make this optimization deciding that a store to one struct member couldn't affect a member of another?
user_395900
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compiler-optimization strict-aliasing clang gcc c++
Placement New U on existing T object and Manipulating it is UB?
user_115218860
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placement-new strict-aliasing c++
Is it valid to cast and access to implicit-lifetime types without explicit object creation?
user_115218860
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strict-aliasing c++
Pointer Cast in C
Admin1
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strict-aliasing pointers struct c
Is casting strings from `wchar_t` to `char16_t` legal if encoding and width is the same?
user_16787700
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203
c++17 strict-aliasing undefined-behavior language-lawyer c++
Do modern c++ compilers optimize assignments after type casting?
user_177655150
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180
strict-aliasing optimization c++
Casting pointer to unrelated type
user_170833220
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127
strict-aliasing c
Strict aliasing rule for character pointer C++
user_29619270
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153
strict-aliasing c++
Why would the C standard (whatever is the latest) forbid this program due to strict aliasing?
user_150580260
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306
strict-aliasing c
C vs C++ placing structs in unsigned char buffer
user_150580260
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strict-aliasing c
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