Why is shrink_to_fit non-binding?
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Published on 2010-04-18T21:31:29Z
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The C++0x FCD states in 23.3.6.2 vector capacity:
void shrink_to_fit();Remarks: shrink_to_fit is a non-binding request to reduce capacity() to size(). [Note: The request is non-binding to allow latitude for implementation-specific optimizations. —end note]
Why is it non-binding, and what optimizations are intended to be allowed?
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