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Re:What is C in practice? by jcranmer on Tuesday June 30, 2015 @03:10AM (#9803461)
C89 prohibited union type-punning. C99 allowed it, but mistakenly left the prohibition in the (non-normative) list of undefined behaviors. C11 did rectify the list.
Re:What is C in practice? by aidenn0 on Tuesday June 30, 2015 @12:54PM (#9806660)
One of the TCs for C99 fixed the list I believe.