[CUDA] default to C++17 for CUDA builds (#7013)

de4c88f9 · James Lamb · GitHub · 56616fba · de4c88f9
Unverified Commit de4c88f9 authored Aug 28, 2025 by James Lamb Committed by GitHub Aug 28, 2025
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Showing with 4 additions and 2 deletions

CMakeLists.txt CMakeLists.txt +4 -2

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--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,7 +36,9 @@ endif()

 project(lightgbm LANGUAGES C CXX)

-if(BUILD_CPP_TEST)
+if(USE_CUDA)
+  set(CMAKE_CXX_STANDARD 17)
+elseif(BUILD_CPP_TEST)
  set(CMAKE_CXX_STANDARD 14)
 else()
  set(CMAKE_CXX_STANDARD 11)
@@ -262,7 +264,7 @@ if(USE_CUDA)
    add_definitions(-DUSE_CUDA)

    if(NOT DEFINED CMAKE_CUDA_STANDARD)
-      set(CMAKE_CUDA_STANDARD 11)
+      set(CMAKE_CUDA_STANDARD 17)
      set(CMAKE_CUDA_STANDARD_REQUIRED ON)
    endif()
 endif()