middle-end/9725: Invalid dependency determination

[Wolfgang Bangerth]

> of not using this logic - how do I access sub-fields of a built-in type

Go through a char* which can alias everything. This special case exists 
for this particular purpose: accessing single bytes in other types.

W.

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Wolfgang Bangerth             email:            bangerth@ticam.utexas.edu
                              www: http://www.ticam.utexas.edu/~bangerth/