Can we using cxx interoperability in windows with STL?

Using Swift
1

We want to use swift and opencv in windows.
We can run the basic example of cxx interoperability in windows. But when we add "import std.string" in main.swift there is a build error no such module 'std.string'.
What should we do can using opencv with swift in windows, thanks?
We using swift 5.7.3 and vs2022 17.4.4.

2

This would be a problem. Anything less than the latest snapshot is likely not a good idea if you want to experiment with C++ interop. The latest snapshot should have the cxx module included.

1 Like
3

Hi.
Thanks for your reply.
After we install the latest snapshot of swift (January 2, 2023). We got this error

XXX\VC\Tools\MSVC\14.34.31933\include\limits:145:54: error: use of undeclared identifier 'FLT_RADIX'.

4

Interesting; I've not seen that, but that seems to be an issue with the modules definition. I think that would require someone to play around with the module map definitions to get it to work with that particular toolset. IIRC, I was using a pre-release toolset when I was trying to get the cxx module working.

5

Thanks.

We'll wait another snapshot and test.