https://codereview.chromium.org/213943002/diff/20001/src/arm64/simulator-arm64.h
File src/arm64/simulator-arm64.h (right):
https://codereview.chromium.org/213943002/diff/20001/src/arm64/simulator-arm64.h#newcode179
src/arm64/simulator-arm64.h:179: } reg = { new_value };
On 2014/03/27 19:58:33, Fritz wrote:
I'm specifically trying to type-alias here in a safe way. [...]
I don't think that such a thing is possible: IIRC, the only defined way
of using a union is accessing its fields consistently, i.e. read only
out of the field you have last written into, everything else is totally
undefined (at least this was the definition for C). Or in other words:
The only safe way to use a union is to save space, not to do some funny
casting/conversion tricks.
Has this changed in C++? If yes, could somebody point me to the right
section of the spec? It would be good to know, because I'm quite sure we
already had trouble in this area.
https://codereview.chromium.org/213943002/
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