* installing *source* package ‘chngpt’ ...
** package ‘chngpt’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C compiler: ‘clang version 18.1.4’
using C++ compiler: ‘clang version 18.1.4’
make[1]: Entering directory '/data/gannet/ripley/R/packages/tests-clang/chngpt/src'
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c M10.cc -o M10.o
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c M111.cc -o M111.o
In file included from M10.cc:10:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from M10.cc:10:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from M10.cc:10:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
In file included from M111.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from M111.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from M111.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c M20.cc -o M20.o
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c M20c.cc -o M20c.o
In file included from M20.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from M20.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from M20.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
In file included from M20c.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from M20c.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from M20c.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c M22.cc -o M22.o
In file included from M22.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from M22.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from M22.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c M22c.cc -o M22c.o
In file included from M22c.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from M22c.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from M22c.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c M30.cc -o M30.o
In file included from M30.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from M30.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from M30.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c M33c.cc -o M33c.o
In file included from M33c.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from M33c.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from M33c.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c Mstep.cc -o Mstep.o
In file included from Mstep.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from Mstep.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from Mstep.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -Wp,-D_FORTIFY_SOURCE=3  -c doublehinge.c -o doublehinge.o
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c fastgrid.cc -o fastgrid.o
In file included from fastgrid.cc:21:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from fastgrid.cc:21:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from fastgrid.cc:21:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c fastgrid2.cc -o fastgrid2.o
In file included from fastgrid2.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from fastgrid2.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from fastgrid2.cc:17:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c fastgrid_helper.cc -o fastgrid_helper.o
In file included from fastgrid_helper.cc:6:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from fastgrid_helper.cc:6:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from fastgrid_helper.cc:6:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c grid.cc -o grid.o
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c performance.cc -o performance.o
In file included from grid.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from grid.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from grid.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
In file included from performance.cc:21:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from performance.cc:21:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from performance.cc:21:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
/usr/local/clang18/bin/clang -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -Wp,-D_FORTIFY_SOURCE=3  -c registerDynamicSymbol.c -o registerDynamicSymbol.o
4 warnings generated.
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -isystem /usr/local/clang18/include -I/usr/local/clang/include    -fpic  -O3 -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3   -c twoD.cc -o twoD.o
In file included from twoD.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:61:
In file included from ./algorithm.h:41:
./matrix_random_access_iterator.h:200:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  200 |       inline const reference operator* () const
      |              ^~~~~
./matrix_random_access_iterator.h:285:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  285 |       inline const reference operator[] (difference_type n) const
      |              ^~~~~
In file included from twoD.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:65:
./matrix_forward_iterator.h:211:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  211 |       inline const reference operator* () const
      |              ^~~~~
In file included from twoD.cc:19:
In file included from ./fastgrid_helper.h:5:
In file included from ./matrix.h:66:
./matrix_bidirectional_iterator.h:216:14: warning: 'const' qualifier on reference type 'reference' (aka 'T_type &') has no effect [-Wignored-reference-qualifiers]
  216 |       inline const reference operator* () const
      |              ^~~~~
4 warnings generated.
/usr/local/clang18/bin/clang++ -std=gnu++17 -shared -L/usr/local/clang/lib64 -L/usr/local/clang18/lib -L/usr/local/clang18/lib/x86_64-unknown-linux-gnu -L/usr/local/gcc13/lib64 -L/usr/local/lib64 -o chngpt.so M10.o M111.o M20.o M20c.o M22.o M22c.o M30.o M33c.o Mstep.o doublehinge.o fastgrid.o fastgrid2.o fastgrid_helper.o grid.o performance.o registerDynamicSymbol.o twoD.o -L/data/gannet/ripley/R/R-clang/lib -lRlapack -L/data/gannet/ripley/R/R-clang/lib -lRblas -lFortran_main -lFortranRuntime -lFortranDecimal -lm
make[1]: Leaving directory '/data/gannet/ripley/R/packages/tests-clang/chngpt/src'
make[1]: Entering directory '/data/gannet/ripley/R/packages/tests-clang/chngpt/src'
make[1]: Leaving directory '/data/gannet/ripley/R/packages/tests-clang/chngpt/src'
installing to /data/gannet/ripley/R/packages/tests-clang/chngpt.Rcheck/00LOCK-chngpt/00new/chngpt/libs
** R
** data
*** moving datasets to lazyload DB
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (chngpt)