Merge pull request #441 from masterleinad/fix_nvcc_warnings_numeric_limits

Only use cuda::std::numeric_limits with nvcc

Author: dalg24

include/experimental/__p0009_bits/utility.hpp

@@ -4,7 +4,7 @@
 #include <type_traits>
 #include <array>
 #include <utility>
-#ifdef MDSPAN_IMPL_HAS_CUDA
+#if defined(MDSPAN_IMPL_HAS_CUDA) && defined(__NVCC__)
 #include <cuda/std/limits>
 #else
 #include <limits>
@@ -203,7 +203,7 @@ MDSPAN_INLINE_FUNCTION constexpr bool cmp_greater_equal(T t, U u) noexcept {
 
 template <class R, class T>
 MDSPAN_INLINE_FUNCTION constexpr bool in_range(T t) noexcept {
-#ifdef MDSPAN_IMPL_HAS_CUDA
+#if defined(MDSPAN_IMPL_HAS_CUDA) && defined(__NVCC__)
   using cuda::std::numeric_limits;
 #else
   using std::numeric_limits;
@@ -226,7 +226,7 @@ check_mul_result_is_nonnegative_and_representable(T a, T b) {
   if constexpr (std::is_signed_v<T>) {
     if ( a < 0 || b < 0 ) return false;
   }
-#ifdef MDSPAN_IMPL_HAS_CUDA
+#if defined(MDSPAN_IMPL_HAS_CUDA) && defined(__NVCC__)
   using cuda::std::numeric_limits;
 #else
   using std::numeric_limits;