Merge pull request #26 from camio/add-msvc-specific-deducing-this-check

Add MSVC-specific deducing-this check

Author: camio

cmake/CompilerFeatureTest.cmake

@@ -12,9 +12,18 @@ include(CheckCXXSourceCompiles)
 function(beman_iterator_check_deducing_this result_var)
   check_cxx_source_compiles( "
 // clang-specific check due to http://github.com/llvm/llvm-project/issues/113174
-#if defined(__cpp_explicit_this_parameter) || (defined(__clang__) && __has_extension(cxx_explicit_this_parameter))
+// MSVC-specific check due to https://developercommunity.visualstudio.com/t/10107077
+#if defined(__cpp_explicit_this_parameter)
 #else
-#error No deducing this support
+  #if defined(_MSC_VER) && (_MSC_VER >= 1932)
+  #elif defined(__clang__)
+    #if __has_extension(cxx_explicit_this_parameter)
+    #else
+      #error No deducing this support
+    #endif
+  #else
+    #error No deducing this support
+  #endif
 #endif
 int main(){}
 " HAVE_DEDUCING_THIS )