problem with meat's clone

[pachadotdev]

The following error occurs because of the line: https://github.com/pachadotdev/fixest/blob/cpp11/src/09_02_vcov_dwdk.cpp.

What I've done to obtain this is to open RStudio/VSCode and run devtools::install(). It goes well until this part. In previous commits, this didn't happen because the current refactoring fixed many build problems, and the build moved forward in the line, but it's blocked at the script 09_02_vcov_dwdk.

The main branch compiles well because it uses Rcpp. The cpp11 branch is the one that fails because it's being ported to cpp11, and it's refactored to avoid copypasting functions in different scripts.

09_02_vcov_dwdk.cpp:127:44: error: cannot convert ‘cpp11::writable::doubles_matrix<>’ {aka ‘cpp11::matrix<cpp11::writable::r_vector<double>, cpp11::writable::r_vector<double>::proxy, cpp11::by_column>’} to ‘int (*)(void*)’
  127 |     writable::doubles_matrix<> res = clone(meat);
      |                                            ^~~~
      |                                            |
      |                                            cpp11::writable::doubles_matrix<> {aka cpp11::matrix<cpp11::writable::r_vector<double>, cpp11::writable::r_vector<double>::proxy, cpp11::by_column>}
In file included from /usr/include/sched.h:43,
                 from /usr/include/pthread.h:22,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/gthr-default.h:35,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/gthr.h:148,
                 from /usr/include/c++/9/ext/atomicity.h:35,
                 from /usr/include/c++/9/memory:73,
                 from /home/pacha/R/x86_64-pc-linux-gnu-library/4.2/cpp11/include/cpp11/as.hpp:5,
                 from /home/pacha/R/x86_64-pc-linux-gnu-library/4.2/cpp11/include/cpp11.hpp:5,
                 from 09_vcov.h:13,
                 from 09_02_vcov_dwdk.cpp:1:

[DavisVaughan]

Isn't clone() an Rcpp function? So you shouldn't expect it to necessarily be compatible with cpp11

[pachadotdev]

Isn't clone() an Rcpp function? So you shouldn't expect it to necessarily be compatible with cpp11

that was the problem! I found a way to avoid it and now I moved to the next error
thanks