error: ‘result_of_t’ is not a member of ‘std’

[Songlin1998]

hi！
When I input 'instant-ngp$ cmake --build build --config RelWithDebInfo -j 16', the Cmake compiling process ended with error ‘result_of_t’ is not a member of ‘std’.

The version of gcc is 8.3.1, and my environment meets the requirements. I guess such error is still related to the environment.

Here are the details：

-- Using X11 for window creation
-- !!! Warning OptiX_INSTALL_DIR not set in environment. using default
-- OptiX_INSTALL_DIR value: /usr/local/NVIDIA-OptiX-SDK-7.3.0-linux64-x86_64
-- OptiX headers (optix.h and friends) not found.
CMake Warning at CMakeLists.txt:170 (message):
OptiX was not found. Neural graphics primitives will still compile and run
correctly. However, SDF training in 'raystab' and 'pathescape' modes will
be significantly slower.

-- pybind11 v2.7.1
-- Targeting GPU architectures: 75;75;75;75;75;75;75;75;75;75
-- Configuring done
-- Generating done
-- Build files have been written to: /hd4/yangsonglin/instant-ngp/build
Consolidate compiler generated dependencies of target glfw_objects
Consolidate compiler generated dependencies of target tiny-cuda-nn
[ 29%] Built target glfw_objects
[ 50%] Built target tiny-cuda-nn
Consolidate compiler generated dependencies of target ngp
[ 52%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui.cpp.o
[ 56%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_tables.cpp.o
[ 56%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_impl_glfw.cpp.o
[ 60%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/ImGuizmo.cpp.o
[ 60%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_impl_opengl3.cpp.o
[ 61%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_draw.cpp.o
[ 63%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_widgets.cpp.o
[ 65%] Building CUDA object CMakeFiles/ngp.dir/src/marching_cubes.cu.o
[ 67%] Building CUDA object CMakeFiles/ngp.dir/src/camera_path.cu.o
[ 69%] Building CUDA object CMakeFiles/ngp.dir/src/common_device.cu.o
[ 70%] Building CUDA object CMakeFiles/ngp.dir/src/render_buffer.cu.o
[ 74%] Building CUDA object CMakeFiles/ngp.dir/src/testbed.cu.o
[ 74%] Building CUDA object CMakeFiles/ngp.dir/src/nerf_loader.cu.o
[ 76%] Building CUDA object CMakeFiles/ngp.dir/src/testbed_image.cu.o
[ 78%] Building CUDA object CMakeFiles/ngp.dir/src/testbed_sdf.cu.o
[ 80%] Building CUDA object CMakeFiles/ngp.dir/src/testbed_nerf.cu.o
[ 81%] Building CUDA object CMakeFiles/ngp.dir/src/testbed_volume.cu.o
[ 83%] Building CXX object CMakeFiles/ngp.dir/src/thread_pool.cpp.o
[ 85%] Building CUDA object CMakeFiles/ngp.dir/src/tinyexr_wrapper.cu.o
In file included from /hd4/yangsonglin/instant-ngp/src/thread_pool.cpp:15:0:
/hd4/yangsonglin/instant-ngp/include/neural-graphics-primitives/thread_pool.h:44:71: error: ‘result_of_t’ is not a member of ‘std’
auto enqueueTask(F&& f, bool highPriority = false) -> std::future<std::result_of_t<F()>> {
^
/hd4/yangsonglin/instant-ngp/include/neural-graphics-primitives/thread_pool.h:44:71: error: ‘result_of_t’ is not a member of ‘std’
/hd4/yangsonglin/instant-ngp/include/neural-graphics-primitives/thread_pool.h:44:90: error: type/value mismatch at argument 1 in template parameter list for ‘template class std::future’
auto enqueueTask(F&& f, bool highPriority = false) -> std::future<std::result_of_t<F()>> {
^
/hd4/yangsonglin/instant-ngp/include/neural-graphics-primitives/thread_pool.h:44:90: error: expected a type, got ‘( < F())’
/hd4/yangsonglin/instant-ngp/include/neural-graphics-primitives/thread_pool.h:44:91: error: expected initializer before ‘>’ token
auto enqueueTask(F&& f, bool highPriority = false) -> std::future<std::result_of_t<F()>> {
^
[ 87%] Building CXX object CMakeFiles/ngp.dir/src/tinyobj_loader_wrapper.cpp.o
gmake[2]: *** [CMakeFiles/ngp.dir/src/thread_pool.cpp.o] Error 1
gmake[2]: *** Waiting for unfinished jobs....
gmake[1]: *** [CMakeFiles/ngp.dir/all] Error 2
gmake: *** [all] Error 2

[pwais]

what version of libc++ do you have? maybe you only have c++20 and perhaps the build only works until c++17 or c++19. can you build in one of the dockerized environments noted in #20 ?

[Songlin1998]

what version of libc++ do you have? maybe you only have c++20 and perhaps the build only works until c++17 or c++19. can you build in one of the dockerized environments noted in #20 ?

thank you for your reply first.

I guess the standard of C++ may effect the process of compilation, so I added 'set(CMAKE_C_FLAGS "-std=c99")
set(CMAKE_CXX_FLAGS "-std=c++14")' into instant-ngp/CMakeLists.txt.

It works, and the error above is fixed.

But another error appears:

Consolidate compiler generated dependencies of target glfw_objects
Consolidate compiler generated dependencies of target tiny-cuda-nn
[ 29%] Built target glfw_objects
[ 50%] Built target tiny-cuda-nn
Consolidate compiler generated dependencies of target ngp
[ 52%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_widgets.cpp.o
[ 54%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui.cpp.o
c++: error: unrecognized command line option ‘-std=c++14’
gmake[2]: *** [CMakeFiles/ngp.dir/dependencies/imgui/imgui_widgets.cpp.o] Error 1
gmake[2]: *** Waiting for unfinished jobs....
[ 58%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_impl_opengl3.cpp.o
[ 58%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/ImGuizmo.cpp.o
[ 60%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_impl_glfw.cpp.o
c++: error: unrecognized command line option ‘-std=c++14’
gmake[2]: *** [CMakeFiles/ngp.dir/dependencies/imgui/imgui.cpp.o] Error 1
[ 63%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_tables.cpp.o
[ 63%] Building CXX object CMakeFiles/ngp.dir/dependencies/imgui/imgui_draw.cpp.o
c++: error: unrecognized command line option ‘-std=c++14’
gmake[2]: *** [CMakeFiles/ngp.dir/dependencies/imgui/imgui_impl_glfw.cpp.o] Error 1
c++: error: unrecognized command line option ‘-std=c++14’
c++: error: unrecognized command line option ‘-std=c++14’
gmake[2]: *** [CMakeFiles/ngp.dir/dependencies/imgui/imgui_impl_opengl3.cpp.o] Error 1
gmake[2]: *** [CMakeFiles/ngp.dir/dependencies/imgui/ImGuizmo.cpp.o] Error 1
c++: error: unrecognized command line option ‘-std=c++14’
[ 69%] Building CUDA object CMakeFiles/ngp.dir/src/nerf_loader.cu.o
[ 69%] Building CUDA object CMakeFiles/ngp.dir/src/camera_path.cu.o
[ 69%] Building CUDA object CMakeFiles/ngp.dir/src/common_device.cu.o
gmake[2]: *** [CMakeFiles/ngp.dir/dependencies/imgui/imgui_tables.cpp.o] Error 1
c++: error: unrecognized command line option ‘-std=c++14’
gmake[2]: *** [CMakeFiles/ngp.dir/dependencies/imgui/imgui_draw.cpp.o] Error 1
[ 70%] Building CUDA object CMakeFiles/ngp.dir/src/marching_cubes.cu.o
[ 72%] Building CUDA object CMakeFiles/ngp.dir/src/render_buffer.cu.o
[ 74%] Building CUDA object CMakeFiles/ngp.dir/src/testbed.cu.o
gmake[1]: *** [CMakeFiles/ngp.dir/all] Error 2
gmake: *** [all] Error 2

[Songlin1998]

BTW, I checked the version of libstdc++ is libstdc++.so.6.0.24.
Should I change this version?

[pwais]

hmm well the included cmake file already specifies c++14

instant-ngp/CMakeLists.txt

Line 56 in 70b59a4

set(CMAKE_CXX_STANDARD 14)

but maybe it needs an additional set(CMAKE_CXX_STANDARD_REQUIRED ON)

the docker container i cited above has libstdc++.so.6.0.25. but thus far you don't appear to have a linker issue

[ErdanC]

Same question. How to solve this problem?

[ErdanC]

@Songlin1998

[ElliotQi]

Solved this by another version of CXX compiler using
cmake . -B build -DCMAKE_CXX_COMPILER=<new version of c++>

[MarkWallbang]

Solved this by another version of CXX compiler using cmake . -B build -DCMAKE_CXX_COMPILER=<new version of c++>

What version did you use? I still have this issue... Thanks!

[youqugit]

BTW, I checked the version of libstdc++ is libstdc++.so.6.0.24. Should I change this version?

hi，How did you solve this problem in the end
你好，你最后是怎么解决的啊

[youqugit]

I solved it using this method：
1.cmake . -B build -DCMAKE_CXX_COMPILER=/ai/user/gcc-11.2.0/install/bin/g++
2.cmake --build build --config RelWithDebInfo -j 16

An error occurred ：
/usr/bin/ld: libngp.a(thread_pool.cpp.o): relocation R_X86_64_32S against .rodata' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: libngp.a(tinyobj_loader_wrapper.cpp.o): relocation R_X86_64_32 against .rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: libngp.a(ImGuizmo.cpp.o): relocation R_X86_64_32 against .bss' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: libngp.a(imgui.cpp.o): relocation R_X86_64_32 against .rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: libngp.a(imgui_impl_glfw.cpp.o): relocation R_X86_64_32S against .rodata' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: libngp.a(imgui_impl_opengl3.cpp.o): relocation R_X86_64_32 against .rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: libngp.a(imgui_draw.cpp.o): relocation R_X86_64_32 against .text' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: libngp.a(imgui_tables.cpp.o): relocation R_X86_64_32 against .rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: libngp.a(imgui_widgets.cpp.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: error: ld returned 1 exit status
gmake[2]: *** [pyngp.cpython-39-x86_64-linux-gnu.so] Error 1
gmake[1]: *** [CMakeFiles/pyngp.dir/all] Error 2

然后，在CMakeList.txt 前面添加: add_compile_options(-fPIC)
then，Add before CMake List.txt: add_ compile_ options(-fPIC)

再次执行 cmake --build build --config RelWithDebInfo -j 16
Execute the command again，cmake --build build --config RelWithDebInfo -j 16

编译成功
build success