Oscar Dowson

This is fixed on master https://github.com/coin-or/Cbc/blob/1706330116dfbc2e474790963506cc00dbf2ead8/src/Cbc_C_Interface.cpp#L2146 whereas the 2.10 branch doesn't check for SOS constraints: https://github.com/coin-or/Cbc/blob/f40e4104b9f29d968ec3181fc5e534af31c0717f/Cbc/src/Cbc_C_Interface.cpp#L848 What is the status of the 3.0 release?

Here's a better example without JuMP: ```Julia using Cbc ptr = Cbc_newModel() Cbc_setParameter(ptr, "solve", "dualSimplex") Cbc_loadProblem( ptr, 1, 0, C_NULL, C_NULL, C_NULL, [0.0], [1.0], [1.0], C_NULL, C_NULL, ) Cbc_setInteger(ptr, 0)...

Why are you trying to set the method for a MIP? Cbc will use branch and cut. It doesn't use pure dual simplex or barrier. As part of the branching,...

`solve` is an action, not a parameter. I'm not sure if there is a way to set the method for the root node. There are two intertwined issues: `Cbc_setParameter` should...

It's not a Julia issue. I can reproduce via the C API: ```c #include "Cbc_C_Interface.h" int main (int argc, const char *argv[]) { Cbc_Model* ptr; ptr = Cbc_newModel(); Cbc_setParameter(ptr, "solve",...

All solvers have a quadratic to SOC bridge by default, but the SOC to quadratic is opt-in. So you can use the QCQP formulations with all solvers. Ideally, you could...

I'm using this in https://github.com/jump-dev/MiniZinc.jl. Current status: * Linux : runs successfully https://github.com/jump-dev/MiniZinc.jl/runs/6283823235?check_suite_focus=true * Mac: segfaults https://github.com/jump-dev/MiniZinc.jl/runs/6283823285?check_suite_focus=true * Windows: does not build with mingw

I guess I need to try your branch? https://github.com/JuliaPackaging/BinaryBuilderBase.jl/issues/248

> It really feels like we should do better in setting up clang for Windows Hahah. I get the hint. I'll take a look.

We didn't end up needing this.