Discover and read the best of Twitter Threads about #undef

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#102 The result of an infinite recursion in template instantiation is undefined behavior: eel.is/c++draft/temp.…

godbolt: godbolt.org/z/jh6bsr Image
#103 Referring to any non-static member or base class of an object in the handler for a function-try-block of a
constructor or destructor for that object results in undefined behavior: eel.is/c++draft/excep…

godbolt: godbolt.org/z/6Yzvvc Image
#104 If the token defined is generated as a result of this replacement process or use of
the defined unary operator does not match one of the two specified forms prior to macro replacement, the
behavior is undefined: eel.is/c++draft/cpp.c…

godbolt: godbolt.org/z/xrdfT4 ImageImage
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