CUDA 12.6 in MSVS - Error in limits file

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi everyone
I currently try to compile a CUDA code in MSVS 2022 (Version 17.12.3) using CUDA Toolkit 12.6. Originally, the code was written using MSVS 2019 and CUDA Toolkit 10.1.

I now encounter the error that build errors are found in the limits files. See log below:

Column 1 Column 2 Column 3 Column 4 E F G H
Severity Code Description Project File Line Suppression State Details
Error C2143 syntax error: missing ‘)’ before ‘;’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2059 syntax error: ‘)’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2238 unexpected token(s) preceding ‘;’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C1201 unable to continue after syntax error in class template definition CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2143 syntax error: missing ‘)’ before ‘;’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2059 syntax error: ‘)’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2238 unexpected token(s) preceding ‘;’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C1201 unable to continue after syntax error in class template definition CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2143 syntax error: missing ‘)’ before ‘;’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2059 syntax error: ‘)’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2238 unexpected token(s) preceding ‘;’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C1201 unable to continue after syntax error in class template definition CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 218
Error C2059 syntax error: ‘)’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 155
Error C2334 unexpected token(s) preceding ‘:’; skipping apparent function body CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 155
Error C2059 syntax error: ‘)’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 155
Error C2334 unexpected token(s) preceding ‘:’; skipping apparent function body CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 155
Error C2059 syntax error: ‘)’ CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 155
Error C2334 unexpected token(s) preceding ‘:’; skipping apparent function body CudaRuntime3 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6\include\cuda\std\detail\libcxx\include\limits 155

CUDA toolkit is installed (I can compile the standard kernel.cu code). Since the code is not intended for public disclosure I cannot show it to you. However, maybe someone has encountered similar issues and know the cause/solution for this problem.

Thank you and cheers

2

Does the error happens directly at the include? (So removing the remaining code still shows the error or you can use ´#error x` before or after the include to see, at which position it came from.
Are other files included first? Does it depend on those?

3

Thank you for your reply. We resolved the problem!

The issue was caused by a wrong recognition of the Item Type of the *.cpp files. They were recognized as C/C++ files but we had to redefine them as CUDA C/C++.

The project now builds correctly and releases a *.dll

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