FAQ-Question

Hi,

I stumbled upon the following code to determine byte ordering in the FAQ:

union {
int i;
char c[sizeof(int)];
} x;
/* do stuff */

In this case it seems that the union was used to convert a memory section
from int to char[]. However I've learned that you couldn't use unions to
reinterpret a memory area, because you can't always be sure that the
fields realy do use the same positions. So why is this code portable?

Thanks,
Till

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