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Asked: 2026-05-26T01:07:03+00:00

Is there is a way/trick to pass std::set to a C API which expects

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Is there is a way/trick to pass std::set to a C API which expects C Array?

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  1. Editorial Team

    No, but you could fill an array with your set contents pretty quickly. For example, assuming mySet is a set of the same type as YOUR_TYPENAME:

    YOUR_TYPENAME arr* = new YOUR_TYPENAME[mySet.size()];
std::copy(mySet.begin(), mySet.end(), arr);

    Then just pass arr into the C API.

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