add C++/C/hpp mixed type inference interface

[njzjz]

Also, add tests.

[codecov]

Codecov Report

Patch coverage: 76.19% and project coverage change: -0.01 ⚠️

Comparison is base (e37f45c) 74.86% compared to head (b37f867) 74.85%.

Additional details and impacted files

@@            Coverage Diff             @@
##            devel    #2360      +/-   ##
==========================================
- Coverage   74.86%   74.85%   -0.01%     
==========================================
  Files         223      223              
  Lines       22270    22438     +168     
  Branches     1633     1656      +23     
==========================================
+ Hits        16673    16797     +124     
- Misses       4536     4561      +25     
- Partials     1061     1080      +19     

Impacted Files	Coverage Δ
source/api_cc/include/DeepPot.h	100.00% <ø> (ø)
source/api_cc/include/common.h	100.00% <ø> (ø)
source/api_cc/src/AtomMap.cc	100.00% <ø> (ø)
source/api_c/src/c_api.cc	78.51% <66.66%> (-0.85%)	⬇️
source/api_cc/src/DeepPot.cc	69.59% <71.05%> (+0.10%)	⬆️
source/api_cc/src/common.cc	78.35% <71.25%> (-1.49%)	⬇️
source/api_c/include/deepmd.hpp	90.90% <100.00%> (+0.77%)	⬆️
source/lib/src/fmt_nlist.cc	78.31% <0.00%> (-1.21%)	⬇️
source/lmp/pair_deepmd.cpp	47.21% <0.00%> (-0.91%)	⬇️
source/op/prod_env_mat_multi_device.cc	93.81% <0.00%> (+0.72%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.