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On 10/01/2012 01:47 PM, Michael Stahl wrote:

... which brings me to another point: in a hypothetical future when we
could efficiently create a UTF8String from a string literal in C++
without copying the darn thing, what should hypothetical operations to
mutate the string's buffer do?
If we continue with the current COW strategy, note that there is already code to take care of immutable rtl_uString instances, see SAL_STRING_IS_STATIC (sal/rtl/source/strimp.hxx).
If we would rather abandon COW, and instead always create copies in copy ctors, the point would be moot. 

Stephan

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