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by blub 3475 days ago
Exceptions or STL classes shouldn't cross library boundaries though, otherwise things will break.
2 comments
gpderetta 3475 days ago
It will work perfectly fine as long as the libraries use compatible ABIs.

Make sure that your compiler provides a stable std library ABI.

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blub 3475 days ago
Good point that it's technically doable.

Is this done a lot in practice? I had the impression that a lot of projects stick to C APIs in dynamic libraries.

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gpderetta 3475 days ago
MSVC does not guarantee a stable standard library ABI, so those that need to target it are out of luck. In linux land, the switch from libstdc++5 to 6 still haunt the memories of many, although it was quite a long time ago (gcc 3.4) and the ABI has been stable since.

In practice the reason that many projects provide a C ABI is that they want to interoperate with other languages and the C ABI, being extremely minimalist, is the least common denominator.

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user5994461 3475 days ago
And that's why exceptions have no real world usage in C++, except for a few local functions here and there.
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