Found the following significant warnings:
  algos.cpp:199:33: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos.cpp:202:33: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos.cpp:214:25: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos.cpp:271:33: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos.cpp:278:37: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos.cpp:281:37: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos.cpp:296:25: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos.cpp:347:29: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos_custom.cpp:88:33: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos_custom.cpp:91:33: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos_custom.cpp:103:25: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos_custom.cpp:157:33: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos_custom.cpp:164:37: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos_custom.cpp:167:37: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos_custom.cpp:182:25: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
  algos_custom.cpp:230:29: warning: ‘bool arma::is_finite(eT, const typename arma_scalar_only<eT>::result*) [with eT = double; typename arma_scalar_only<eT>::result = double]’ is deprecated: change arma::is_finite(val) to std::isfinite(val) [-Wdeprecated-declarations]
See ‘/home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/cpss.Rcheck/00install.out’ for details.
* used C++ compiler: ‘g++-14 (Debian 14.3.0-10) 14.3.0’