C++ : Why does shared_ptr T ::use_count() return a long instead of an unsigned type?

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C++ : Why does shared_ptr T ::use_count() return a long instead of an unsigned type?
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C++ : Why does shared_ptr T ::use_count() return a long instead of an unsigned type?
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long T an Why unsigned type? does a return C++ of shared_ptr : instead ::use_count()



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