* installing *source* package ‘fastQR’ ... ** this is package ‘fastQR’ version ‘1.1.0’ ** using staged installation ** libs using C++ compiler: ‘g++-15 (Debian 15.2.0-12) 15.2.0’ g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c QR_utils_wrap.cpp -o QR_utils_wrap.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c QR_wrap.cpp -o QR_wrap.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c QRdecomposition.cpp -o QRdecomposition.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c QRupdate.cpp -o QRupdate.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c QRutils.cpp -o QRutils.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c RcppExports.cpp -o RcppExports.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c fastQR_wrap.cpp -o fastQR_wrap.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c fastQRutils.cpp -o fastQRutils.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c givens_house.cpp -o givens_house.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c support_functions.cpp -o support_functions.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c thinQR_wrap.cpp -o thinQR_wrap.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c thinQRupdate.cpp -o thinQRupdate.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++17 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppArmadillo/include' -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c utils.cpp -o utils.o utils.cpp: In function ‘Eigen::VectorXd vec2scalar_prod(const Eigen::VectorXd&, const double&)’: utils.cpp:51:18: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare] 51 | for (int i=0; i