Found the following significant warnings:
  SSpace.h:578:19: warning: ‘bool arma::is_finite(const Base<typename T1::elem_type, T1>&) [with T1 = subview<double>; typename T1::elem_type = double]’ is deprecated: change arma::is_finite(X) to X.is_finite() [-Wdeprecated-declarations]
  SSpace.h:713:22: warning: ‘bool arma::is_finite(const Base<typename T1::elem_type, T1>&) [with T1 = subview<double>; typename T1::elem_type = double]’ is deprecated: change arma::is_finite(X) to X.is_finite() [-Wdeprecated-declarations]
  SSpace.h:849:21: warning: ‘bool arma::is_finite(const Base<typename T1::elem_type, T1>&) [with T1 = subview<double>; typename T1::elem_type = double]’ is deprecated: change arma::is_finite(X) to X.is_finite() [-Wdeprecated-declarations]
  SSpace.h:1032:19: warning: ‘bool arma::is_finite(const Base<typename T1::elem_type, T1>&) [with T1 = subview<double>; typename T1::elem_type = double]’ is deprecated: change arma::is_finite(X) to X.is_finite() [-Wdeprecated-declarations]
  SSpace.h:1128:20: warning: ‘bool arma::is_finite(const Base<typename T1::elem_type, T1>&) [with T1 = subview<double>; typename T1::elem_type = double]’ is deprecated: change arma::is_finite(X) to X.is_finite() [-Wdeprecated-declarations]
  ETSmodel.h:1008:26: 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]
  ETSmodel.h:1037:34: 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]
  ETSmodel.h:1048:34: 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]
  ETSmodel.h:1061:34: 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]
  ETSmodel.h:1074:34: 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]
  ETSmodel.h:1088:34: 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]
  ETSmodel.h:1113:34: 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]
  ETSmodel.h:1121:34: 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]
  ETSmodel.h:1131:34: 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]
  ETSmodel.h:1141:34: 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]
  ETSmodel.h:1153:34: 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]
  ETSmodel.h:1165:34: 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]
  ETSmodel.h:1177:34: 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]
  ETSmodel.h:1196:34: 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]
  ETSmodel.h:1209:34: 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/UComp.Rcheck/00install.out’ for details.
* used C++ compiler: ‘g++-14 (Debian 14.3.0-8) 14.3.0’