On 11 March 2015 at 16:11, Jakub Jelinek wrote: > There is some PR about it in our bugzilla, and the conclusion is that > it is both invalid (in C only one union member can be active at any time, > we as extension allow type punning through unions etc.) > and we really don't want to support it.
I thought type punning was valid since C99 (but not C89 or any version of C++).