dev-cpp:ETL-0.04.15:20180219-154436.log

dev-cpp:ETL-0.04.15:20180219-154436.log (text/plain), 53.46 KB, created by Toralf Förster on 2018-02-19 18:55:35 UTC

 * Package:    dev-cpp/ETL-0.04.15
 * Repository: gentoo
 * Maintainer: [e-mail]
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux pie ssp test userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox test userpriv usersandbox
>>> Unpacking source...
>>> Unpacking ETL-0.04.15.tar.gz to /var/tmp/portage/dev-cpp/ETL-0.04.15/work
>>> Source unpacked in /var/tmp/portage/dev-cpp/ETL-0.04.15/work
>>> Preparing source in /var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15 ...
 * Running eautoreconf in '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15' ...
 * Running aclocal -I m4 ...
 [ ok ]
 * Running autoconf --force ...
 [ ok ]
 * Running autoheader ...
 [ ok ]
 * Running automake --add-missing --copy --force-missing ...
 [ ok ]
 * Running elibtoolize in: ETL-0.04.15/
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15 ...
 * econf: updating ETL-0.04.15/config/config.sub with /usr/share/gnuconfig/config.sub
 * econf: updating ETL-0.04.15/config/config.guess with /usr/share/gnuconfig/config.guess
./configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-dependency-tracking --libdir=/usr/lib64
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking target system type... x86_64-pc-linux-gnu
checking for a BSD-compatible install... /usr/lib/portage/python3.5/ebuild-helpers/xattr/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for x86_64-pc-linux-gnu-gcc... x86_64-pc-linux-gnu-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether x86_64-pc-linux-gnu-gcc accepts -g... yes
checking for x86_64-pc-linux-gnu-gcc option to accept ISO C89... none needed
checking whether x86_64-pc-linux-gnu-gcc understands -c and -o together... yes
checking for style of include used by make... GNU
checking dependency style of x86_64-pc-linux-gnu-gcc... none
checking for x86_64-pc-linux-gnu-g++... x86_64-pc-linux-gnu-g++
checking whether we are using the GNU C++ compiler... yes
checking whether x86_64-pc-linux-gnu-g++ accepts -g... yes
checking dependency style of x86_64-pc-linux-gnu-g++... none
checking for x86_64-pc-linux-gnu-ranlib... x86_64-pc-linux-gnu-ranlib
checking for compiler warning flags to use... -W -Wall
checking for debug flags... -DNDEBUG
checking for optimization flags... -O2
checking for profiling... no
checking how to run the C++ preprocessor... x86_64-pc-linux-gnu-g++ -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for main in -luser32... no
checking for CreateMutex in -lkernel32... no
checking for pthread_mutex_init in -lpthread... yes
checking for ANSI C header files... (cached) yes
checking pthread.h usability... yes
checking pthread.h presence... yes
checking for pthread.h... yes
checking sched.h usability... yes
checking sched.h presence... yes
checking for sched.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking for unistd.h... (cached) yes
checking windows.h usability... no
checking windows.h presence... no
checking for windows.h... no
checking for pthread_create... yes
checking for pthread_rwlock_init... yes
checking for sched_yield... yes
checking for CreateThread... no
checking for QueryPerformanceCounter... no
checking for gettimeofday... yes
checking for sscanf... yes
checking for vsscanf... yes
checking for vsprintf... yes
checking for vasprintf... yes
checking for vsnprintf... yes
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating ETL-config
config.status: creating Makefile
config.status: creating ETL/Makefile
config.status: creating test/Makefile
config.status: creating ETL.pc
config.status: creating doxygen.cfg
config.status: creating ETL/etl_profile_.h
config.status: executing depfiles commands

Extended Template Library v.0.04.15
Configuration Summary
- - - - - -

Install Prefix -------------------> /usr
Target Platform ------------------> x86_64-pc-linux-gnu
Debug Mode -----------------------> no

$CXX ------------------------------> 'x86_64-pc-linux-gnu-g++'
$CXXFLAGS -------------------------> ' -pipe -march=native -W -Wall -O2'

>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15 ...
make -j 1 
Making all in ETL
make[1]: Entering directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/ETL'
make  all-am
make[2]: Entering directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/ETL'
sed "s/PACKAGE/ETL/g;" < ../ETL/etl_profile_.h > ../ETL/etl_profile.h
make[2]: Leaving directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/ETL'
make[1]: Leaving directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/ETL'
Making all in test
make[1]: Entering directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/test'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/test'
make[1]: Entering directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15'
make[1]: Nothing to be done for 'all-am'.
make[1]: Leaving directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15'
>>> Source compiled.
>>> Test phase: dev-cpp/ETL-0.04.15
make -j 1   -j1 check
Making check in ETL
make[1]: Entering directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/ETL'
make[1]: Leaving directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/ETL'
Making check in test
make[1]: Entering directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/test'
make  fixed handle clock angle random hermite stringf pen surface smart_ptr benchmark smach spline value
make[2]: Entering directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/test'
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o fixed.o fixed.cpp
fixed.cpp:133:18: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   fprintf(stderr,"fixed: abs() failure on line %d in "__FILE__".\n",__LINE__);
                  ^
fixed.cpp:142:18: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   fprintf(stderr,"fixed: Failed test on line %d in "__FILE__".\n",__LINE__);
                  ^
fixed.cpp:160:18: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   fprintf(stderr,"fixed: Failed test on line %d in "__FILE__".\n",__LINE__);
                  ^
x86_64-pc-linux-gnu-g++ -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2  -Wl,-O1 -Wl,--as-needed -o fixed fixed.o  -lpthread 
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o handle.o handle.cpp
x86_64-pc-linux-gnu-g++ -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2  -Wl,-O1 -Wl,--as-needed -o handle handle.o  -lpthread 
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o clock.o clock.cpp
x86_64-pc-linux-gnu-g++ -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2  -Wl,-O1 -Wl,--as-needed -o clock clock.o  -lpthread 
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o angle.o angle.cpp
angle.cpp: In instantiation of ‘void angle_cos_speed_test() [with Angle = etl::angle]’:
angle.cpp:373:30:   required from here
angle.cpp:283:12: warning: variable ‘tmp2’ set but not used [-Wunused-but-set-variable]
  float tmp,tmp2;
            ^~~~
angle.cpp: In instantiation of ‘void angle_cos_speed_test() [with Angle = etl::fastangle]’:
angle.cpp:378:34:   required from here
angle.cpp:283:12: warning: variable ‘tmp2’ set but not used [-Wunused-but-set-variable]
angle.cpp: In instantiation of ‘void angle_sin_speed_test() [with Angle = etl::angle]’:
angle.cpp:384:30:   required from here
angle.cpp:301:12: warning: variable ‘tmp2’ set but not used [-Wunused-but-set-variable]
  float tmp,tmp2;
            ^~~~
angle.cpp: In instantiation of ‘void angle_sin_speed_test() [with Angle = etl::fastangle]’:
angle.cpp:389:34:   required from here
angle.cpp:301:12: warning: variable ‘tmp2’ set but not used [-Wunused-but-set-variable]
angle.cpp: In instantiation of ‘void angle_tan_speed_test() [with Angle = etl::angle]’:
angle.cpp:395:30:   required from here
angle.cpp:319:12: warning: variable ‘tmp2’ set but not used [-Wunused-but-set-variable]
  float tmp,tmp2;
            ^~~~
angle.cpp: In instantiation of ‘void angle_tan_speed_test() [with Angle = etl::fastangle]’:
angle.cpp:400:34:   required from here
angle.cpp:319:12: warning: variable ‘tmp2’ set but not used [-Wunused-but-set-variable]
x86_64-pc-linux-gnu-g++ -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2  -Wl,-O1 -Wl,--as-needed -o angle angle.o  -lpthread 
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o random.o random.cpp
x86_64-pc-linux-gnu-g++ -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2  -Wl,-O1 -Wl,--as-needed -o random random.o  -lpthread 
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o hermite.o hermite.cpp
x86_64-pc-linux-gnu-g++ -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2  -Wl,-O1 -Wl,--as-needed -o hermite hermite.o  -lpthread 
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o stringf.o stringf.cpp
x86_64-pc-linux-gnu-g++ -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2  -Wl,-O1 -Wl,--as-needed -o stringf stringf.o  -lpthread 
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o pen.o pen.cpp
pen.cpp:50:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("Um..... malloc failure on line %d of "__FILE__"...\n",__LINE__);
          ^
pen.cpp:59:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: On pen bool test\n",__LINE__);
          ^
pen.cpp:65:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: On request for horizontal iterator\n",__LINE__);
          ^
pen.cpp:71:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: On request for vertical iterator\n",__LINE__);
          ^
pen.cpp:80:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: On pen assignment or pen comparison\n",__LINE__);
          ^
pen.cpp:89:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: pen difference inconsistency ([%d,%d]!=[%d,%d])\n",__LINE__,diff.x,diff.y,w,h);
          ^
pen.cpp:95:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: iterator_x inconsistency (%ld!=%d)\n",__LINE__,pen.end_x()-pen.x(),w);
          ^
pen.cpp:101:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: iterator_y inconsistency (%d!=%d)\n",__LINE__,pen.end_y()-pen.y(),h);
          ^
pen.cpp:107:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: iterator_y inconsistency\n",__LINE__);
          ^
pen.cpp:113:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: iterator_x inconsistency\n",__LINE__);
          ^
pen.cpp:228:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("Um..... malloc failure on line %d of "__FILE__"...\n",__LINE__);
          ^
pen.cpp:284:10: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
   printf("FAILURE! "__FILE__"@%d: blur result contained %d bad values\n",__LINE__,bad_values);
          ^
pen.cpp: In function ‘int generic_pen_test(int, int)’:
pen.cpp:47:2: warning: ‘template<class> class std::auto_ptr’ is deprecated [-Wdeprecated-declarations]
  auto_ptr<float> data(new float[w*h]);
  ^~~~~~~~
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/memory:80:0,
                 from pen.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/unique_ptr.h:51:28: note: declared here
   template<typename> class auto_ptr;
                            ^~~~~~~~
pen.cpp: In function ‘void emptyfunction(int)’:
pen.cpp:211:13: warning: variable ‘stupid’ set but not used [-Wunused-but-set-variable]
  static int stupid = 0;
             ^~~~~~
pen.cpp: In function ‘int box_blur_test()’:
pen.cpp:224:2: warning: ‘template<class> class std::auto_ptr’ is deprecated [-Wdeprecated-declarations]
  auto_ptr<boxblur_float> data(new boxblur_float[w*h]);
  ^~~~~~~~
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/memory:80:0,
                 from pen.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/unique_ptr.h:51:28: note: declared here
   template<typename> class auto_ptr;
                            ^~~~~~~~
pen.cpp:225:2: warning: ‘template<class> class std::auto_ptr’ is deprecated [-Wdeprecated-declarations]
  auto_ptr<boxblur_float> data2(new boxblur_float[w*h]);
  ^~~~~~~~
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/memory:80:0,
                 from pen.cpp:29:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/unique_ptr.h:51:28: note: declared here
   template<typename> class auto_ptr;
                            ^~~~~~~~
x86_64-pc-linux-gnu-g++ -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2  -Wl,-O1 -Wl,--as-needed -o pen pen.o  -lpthread 
x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.. -I../ETL    -pipe -march=native -W -Wall -O2 -I.. -I../ETL -pipe -march=native -W -Wall -O2 -c -o surface.o surface.cpp
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h: In member function ‘void etl::surface<T, AT, VP>::swap(const etl::surface<T, AT, VP>&)’:
../ETL/_surface.h:93:20: error: no matching function for call to ‘swap(int&, const int&)’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/nested_exception.h:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/exception:143,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:187:5: note: candidate: template<class _Tp> typename std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> >::value>::type std::swap(_Tp&, _Tp&)
     swap(_Tp& __a, _Tp& __b)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:187:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   deduced conflicting types for parameter ‘_Tp’ (‘int’ and ‘const int’)
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/nested_exception.h:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/exception:143,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:210:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<std::__is_swappable<_Tp>::value>::type std::swap(_Tp (&)[_Nm], _Tp (&)[_Nm])
     swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:210:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘_Tp [_Nm]’ and ‘int’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:490:5: note: candidate: template<class _T1, class _T2> typename std::enable_if<std::__and_<std::__is_swappable<_T1>, std::__is_swappable<_T2> >::value>::type std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&)
     swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:490:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘std::pair<_T1, _T2>’ and ‘int’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:498:5: note: candidate: template<class _T1, class _T2> typename std::enable_if<(! std::__and_<std::__is_swappable<_T1>, std::__is_swappable<_T2> >::value)>::type std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&) <deleted>
     swap(pair<_T1, _T2>&, pair<_T1, _T2>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:498:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘std::pair<_T1, _T2>’ and ‘int’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/basic_string.h:6234:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> void std::swap(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     swap(basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/basic_string.h:6234:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘int’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:39:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:294:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<typename std::__array_traits<_Tp, _Nm>::_Is_swappable:: value>::type std::swap(std::array<_Tp, _Nm>&, std::array<_Tp, _Nm>&)
     swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:294:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘std::array<_Tp, _Nm>’ and ‘int’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:39:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:302:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<(! typename std::__array_traits<_Tp, _Nm>::_Is_swappable:: value)>::type std::swap(std::array<_Tp, _Nm>&, std::array<_Tp, _Nm>&) <deleted>
     swap(array<_Tp, _Nm>&, array<_Tp, _Nm>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:302:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘std::array<_Tp, _Nm>’ and ‘int’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1602:5: note: candidate: template<class ... _Elements> typename std::enable_if<std::__and_<std::__is_swappable<_Elements>...>::value>::type std::swap(std::tuple<_Tps ...>&, std::tuple<_Tps ...>&)
     swap(tuple<_Elements...>& __x, tuple<_Elements...>& __y)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1602:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘std::tuple<_Tps ...>’ and ‘int’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1609:5: note: candidate: template<class ... _Elements> typename std::enable_if<(! std::__and_<std::__is_swappable<_Elements>...>::value)>::type std::swap(std::tuple<_Tps ...>&, std::tuple<_Tps ...>&) <deleted>
     swap(tuple<_Elements...>&, tuple<_Elements...>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1609:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘std::tuple<_Tps ...>’ and ‘int’
   std::swap(w_,x.w_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:58:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/std_function.h:803:5: note: candidate: template<class _Res, class ... _Args> void std::swap(std::function<_Res(_ArgTypes ...)>&, std::function<_Res(_ArgTypes ...)>&)
     swap(function<_Res(_Args...)>& __x, function<_Res(_Args...)>& __y) noexcept
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/std_function.h:803:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:93:20: note:   mismatched types ‘std::function<_Res(_ArgTypes ...)>’ and ‘int’
   std::swap(w_,x.w_);
                    ^
../ETL/_surface.h:94:20: error: no matching function for call to ‘swap(int&, const int&)’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/nested_exception.h:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/exception:143,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:187:5: note: candidate: template<class _Tp> typename std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> >::value>::type std::swap(_Tp&, _Tp&)
     swap(_Tp& __a, _Tp& __b)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:187:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   deduced conflicting types for parameter ‘_Tp’ (‘int’ and ‘const int’)
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/nested_exception.h:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/exception:143,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:210:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<std::__is_swappable<_Tp>::value>::type std::swap(_Tp (&)[_Nm], _Tp (&)[_Nm])
     swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:210:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘_Tp [_Nm]’ and ‘int’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:490:5: note: candidate: template<class _T1, class _T2> typename std::enable_if<std::__and_<std::__is_swappable<_T1>, std::__is_swappable<_T2> >::value>::type std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&)
     swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:490:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘std::pair<_T1, _T2>’ and ‘int’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:498:5: note: candidate: template<class _T1, class _T2> typename std::enable_if<(! std::__and_<std::__is_swappable<_T1>, std::__is_swappable<_T2> >::value)>::type std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&) <deleted>
     swap(pair<_T1, _T2>&, pair<_T1, _T2>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:498:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘std::pair<_T1, _T2>’ and ‘int’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/basic_string.h:6234:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> void std::swap(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     swap(basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/basic_string.h:6234:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘int’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:39:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:294:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<typename std::__array_traits<_Tp, _Nm>::_Is_swappable:: value>::type std::swap(std::array<_Tp, _Nm>&, std::array<_Tp, _Nm>&)
     swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:294:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘std::array<_Tp, _Nm>’ and ‘int’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:39:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:302:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<(! typename std::__array_traits<_Tp, _Nm>::_Is_swappable:: value)>::type std::swap(std::array<_Tp, _Nm>&, std::array<_Tp, _Nm>&) <deleted>
     swap(array<_Tp, _Nm>&, array<_Tp, _Nm>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:302:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘std::array<_Tp, _Nm>’ and ‘int’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1602:5: note: candidate: template<class ... _Elements> typename std::enable_if<std::__and_<std::__is_swappable<_Elements>...>::value>::type std::swap(std::tuple<_Tps ...>&, std::tuple<_Tps ...>&)
     swap(tuple<_Elements...>& __x, tuple<_Elements...>& __y)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1602:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘std::tuple<_Tps ...>’ and ‘int’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1609:5: note: candidate: template<class ... _Elements> typename std::enable_if<(! std::__and_<std::__is_swappable<_Elements>...>::value)>::type std::swap(std::tuple<_Tps ...>&, std::tuple<_Tps ...>&) <deleted>
     swap(tuple<_Elements...>&, tuple<_Elements...>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1609:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘std::tuple<_Tps ...>’ and ‘int’
   std::swap(h_,x.h_);
                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:58:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/std_function.h:803:5: note: candidate: template<class _Res, class ... _Args> void std::swap(std::function<_Res(_ArgTypes ...)>&, std::function<_Res(_ArgTypes ...)>&)
     swap(function<_Res(_Args...)>& __x, function<_Res(_Args...)>& __y) noexcept
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/std_function.h:803:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:94:20: note:   mismatched types ‘std::function<_Res(_ArgTypes ...)>’ and ‘int’
   std::swap(h_,x.h_);
                    ^
../ETL/_surface.h:95:36: error: no matching function for call to ‘swap(bool&, const bool&)’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/nested_exception.h:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/exception:143,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:187:5: note: candidate: template<class _Tp> typename std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> >::value>::type std::swap(_Tp&, _Tp&)
     swap(_Tp& __a, _Tp& __b)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:187:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   deduced conflicting types for parameter ‘_Tp’ (‘bool’ and ‘const bool’)
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/nested_exception.h:40:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/exception:143,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:210:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<std::__is_swappable<_Tp>::value>::type std::swap(_Tp (&)[_Nm], _Tp (&)[_Nm])
     swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/move.h:210:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘_Tp [_Nm]’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:490:5: note: candidate: template<class _T1, class _T2> typename std::enable_if<std::__and_<std::__is_swappable<_T1>, std::__is_swappable<_T2> >::value>::type std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&)
     swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:490:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘std::pair<_T1, _T2>’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_algobase.h:64:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/char_traits.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:498:5: note: candidate: template<class _T1, class _T2> typename std::enable_if<(! std::__and_<std::__is_swappable<_T1>, std::__is_swappable<_T2> >::value)>::type std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&) <deleted>
     swap(pair<_T1, _T2>&, pair<_T1, _T2>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/stl_pair.h:498:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘std::pair<_T1, _T2>’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/string:52:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/locale_classes.h:40,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/ios_base.h:41,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ios:42,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/ostream:38,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/iostream:39,
                 from surface.cpp:24:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/basic_string.h:6234:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> void std::swap(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     swap(basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/basic_string.h:6234:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:39:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:294:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<typename std::__array_traits<_Tp, _Nm>::_Is_swappable:: value>::type std::swap(std::array<_Tp, _Nm>&, std::array<_Tp, _Nm>&)
     swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:294:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘std::array<_Tp, _Nm>’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:39:0,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:302:5: note: candidate: template<class _Tp, long unsigned int _Nm> typename std::enable_if<(! typename std::__array_traits<_Tp, _Nm>::_Is_swappable:: value)>::type std::swap(std::array<_Tp, _Nm>&, std::array<_Tp, _Nm>&) <deleted>
     swap(array<_Tp, _Nm>&, array<_Tp, _Nm>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/array:302:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘std::array<_Tp, _Nm>’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1602:5: note: candidate: template<class ... _Elements> typename std::enable_if<std::__and_<std::__is_swappable<_Elements>...>::value>::type std::swap(std::tuple<_Tps ...>&, std::tuple<_Tps ...>&)
     swap(tuple<_Elements...>& __x, tuple<_Elements...>& __y)
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1602:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘std::tuple<_Tps ...>’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:54:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1609:5: note: candidate: template<class ... _Elements> typename std::enable_if<(! std::__and_<std::__is_swappable<_Elements>...>::value)>::type std::swap(std::tuple<_Tps ...>&, std::tuple<_Tps ...>&) <deleted>
     swap(tuple<_Elements...>&, tuple<_Elements...>&) = delete;
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/tuple:1609:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘std::tuple<_Tps ...>’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/functional:58:0,
                 from ../ETL/_curve_func.h:32,
                 from ../ETL/_pen.h:32,
                 from ../ETL/_surface.h:33,
                 from ../ETL/surface:32,
                 from surface.cpp:25:
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/std_function.h:803:5: note: candidate: template<class _Res, class ... _Args> void std::swap(std::function<_Res(_ArgTypes ...)>&, std::function<_Res(_ArgTypes ...)>&)
     swap(function<_Res(_Args...)>& __x, function<_Res(_Args...)>& __y) noexcept
     ^~~~
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.0/include/g++-v7/bits/std_function.h:803:5: note:   template argument deduction/substitution failed:
In file included from ../ETL/surface:32:0,
                 from surface.cpp:25:
../ETL/_surface.h:95:36: note:   mismatched types ‘std::function<_Res(_ArgTypes ...)>’ and ‘bool’
   std::swap(deletable_,x.deletable_);
                                    ^
../ETL/_surface.h: In instantiation of ‘etl::surface<T, AT, VP>::value_type etl::surface<T, AT, VP>::cubic_sample(float, float) const [with T = float; AT = float; VP = etl::value_prep<float, float>; etl::surface<T, AT, VP>::value_type = float]’:
surface.cpp:182:5:   required from here
../ETL/_surface.h:464:10: warning: narrowing conversion of ‘((5.0e-1 * ((double)((float)xf))) * ((double)((((float)xf) * ((((float)xf) * (float)-1) + (float)2)) - (float)1)))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing]
    0.5*xf*(xf*(xf*(-1) + 2) - 1), //-t + 2t^2 -t^3
    ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
../ETL/_surface.h:465:7: warning: narrowing conversion of ‘(5.0e-1 * ((double)((((float)xf) * (((float)xf) * (((float)3 * ((float)xf)) - (float)5))) + (float)2)))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing]
    0.5*(xf*(xf*(3*xf - 5)) + 2),  //2 - 5t^2 + 3t^3
    ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
../ETL/_surface.h:466:10: warning: narrowing conversion of ‘((5.0e-1 * ((double)((float)xf))) * ((double)((((float)xf) * (((float)-3 * ((float)xf)) + (float)4)) + (float)1)))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing]
    0.5*xf*(xf*(-3*xf + 4) + 1), //t + 4t^2 - 3t^3
    ~~~~~~^~~~~~~~~~~~~~~~~~~~~
../ETL/_surface.h:467:13: warning: narrowing conversion of ‘(((5.0e-1 * ((double)((float)xf))) * ((double)((float)xf))) * ((double)(((float)xf) - (float)1)))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing]
    0.5*xf*xf*(xf-1)    //-t^2 + t^3
    ~~~~~~~~~^~~~~~~
../ETL/_surface.h:472:10: warning: narrowing conversion of ‘((5.0e-1 * ((double)((float)yf))) * ((double)((((float)yf) * ((((float)yf) * (float)-1) + (float)2)) - (float)1)))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing]
    0.5*yf*(yf*(yf*(-1) + 2) - 1), //-t + 2t^2 -t^3
    ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
../ETL/_surface.h:473:7: warning: narrowing conversion of ‘(5.0e-1 * ((double)((((float)yf) * (((float)yf) * (((float)3 * ((float)yf)) - (float)5))) + (float)2)))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing]
    0.5*(yf*(yf*(3*yf - 5)) + 2),  //2 - 5t^2 + 3t^3
    ~~~^~~~~~~~~~~~~~~~~~~~~~~~~
../ETL/_surface.h:474:10: warning: narrowing conversion of ‘((5.0e-1 * ((double)((float)yf))) * ((double)((((float)yf) * (((float)-3 * ((float)yf)) + (float)4)) + (float)1)))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing]
    0.5*yf*(yf*(-3*yf + 4) + 1), //t + 4t^2 - 3t^3
    ~~~~~~^~~~~~~~~~~~~~~~~~~~~
../ETL/_surface.h:475:13: warning: narrowing conversion of ‘(((5.0e-1 * ((double)((float)yf))) * ((double)((float)yf))) * ((double)(((float)yf) - (float)1)))’ from ‘double’ to ‘float’ inside { } [-Wnarrowing]
    0.5*yf*yf*(yf-1)    //-t^2 + t^3
    ~~~~~~~~~^~~~~~~
make[2]: *** [Makefile:681: surface.o] Error 1
make[2]: Leaving directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/test'
make[1]: *** [Makefile:1020: check-am] Error 2
make[1]: Leaving directory '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15/test'
make: *** [Makefile:513: check-recursive] Error 1
 * ERROR: dev-cpp/ETL-0.04.15::gentoo failed (test phase):
 *   Make check failed. See above for details.
 * 
 * Call stack:
 *            ebuild.sh, line  124:  Called src_test
 *          environment, line 1166:  Called default
 *   phase-functions.sh, line  853:  Called default_src_test
 *   phase-functions.sh, line  882:  Called __eapi0_src_test
 *     phase-helpers.sh, line  764:  Called die
 * The specific snippet of code:
 *   		$emake_cmd ${internal_opts} check || \
 *   			die "Make check failed. See above for details."
 * 
 * If you need support, post the output of `emerge --info '=dev-cpp/ETL-0.04.15::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-cpp/ETL-0.04.15::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-cpp:ETL-0.04.15:20180219-154436.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-cpp/ETL-0.04.15/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-cpp/ETL-0.04.15/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15'
 * S: '/var/tmp/portage/dev-cpp/ETL-0.04.15/work/ETL-0.04.15'