error: ‘value’ is not a member of ‘nix::to_data_type<long long unsigned int>’

[jgrewe]

nix_mx does not compile under linux, I get the following compile error:

/home/jan/projects/programming/nix-mx/include/utils/mkarray.h: In instantiation of ‘typename std::enable_if<std::is_arithmetic<_Tp>::value, mxArray_tag>::type* make_mx_array(T) [with T = long long unsigned int; typename std::enable_if<std::is_arithmetic<_Tp>::value, mxArray_tag>::type = mxArray_tag]’:
/home/jan/projects/programming/nix-mx/include/utils/struct.h:43:66:   required from ‘void struct_builder::set(mwIndex, int, T&&) [with T = long long unsigned int; mwIndex = long unsigned int]’
/home/jan/projects/programming/nix-mx/include/utils/struct.h:38:3:   required from ‘void struct_builder::set(int, T&&) [with T = long long unsigned int]’
/home/jan/projects/programming/nix-mx/include/utils/struct.h:28:3:   required from ‘void struct_builder::set(T&&) [with T = long long unsigned int]’
/home/jan/projects/programming/nix-mx/src/nixgen.cc:64:36:   required from here
/home/jan/projects/programming/nix-mx/include/utils/mkarray.h:59:58: error: ‘value’ is not a member of ‘nix::to_data_type<long long unsigned int>’
  DType2 dtype = dtype_nix2mex(nix::to_data_type<T>::value);

[gicmo]

It is SourceCount, which is ndsize_t(long long unsigned int) which should be 64bit unsigned, i.e. uint64_t (DataType.hpp line 161). What compiler + platform is that exactly?

[gicmo]

Oh, and it is a nix bug, because to_data_type<T> is in nix. I guess we never do a to_data_type<ndsize_t> in nix?

[jgrewe]

Just did a static cast to mwSize, like it is done at other places in the wrapper

[jgrewe]

so it is ubuntu 64bit, g++ 4.82

[gicmo]

This is indeed a NIX issue: G-Node/nix#486