fix compilation of ginkgo 1.7.0 with msvc & C++20

recipes/ginkgo/all/conandata.yml

@@ -10,21 +10,25 @@ sources:
     sha256: "1b0e907b4046cdf7cef16d1730c12ba812b38f2764f49f74f454239a27f63596"
 patches:
   "1.7.0":
-    - patch_file: "patches/libc++-chrono.patch"
+    - patch_file: "patches/1.7.0-0001-libc++-chrono.patch"
       patch_type: "official"
       patch_description: "Fix for std::chrono incompatibility with libc++"
       patch_source: "https://github.com/ginkgo-project/ginkgo/pull/1463"
+    - patch_file: "patches/1.7.0-0002-msvc-c++20.patch"
+      patch_type: "portability"
+      patch_description: "Fix compilation with Visual Studio and C++20"
+      patch_source: "https://github.com/ginkgo-project/ginkgo/commit/876d8ffb8a632862899de446c694526a89a79863"
   "1.4.0":
-    - patch_file: "patches/windows-symbols.patch"
+    - patch_file: "patches/1.4.0-0001-windows-symbols.patch"
       patch_type: "official"
       patch_description: "Fix for excessive link symbol count with MSVC"
       patch_source: "https://github.com/ginkgo-project/ginkgo/pull/868"
   "1.3.0":
-    - patch_file: "patches/cmake-fixes.patch"
+    - patch_file: "patches/1.3.0-0001-cmake-fixes.patch"
       patch_type: "official"
       patch_description: "Fixes for CMake issues"
       patch_source: "https://github.com/ginkgo-project/ginkgo/pull/713, https://github.com/ginkgo-project/ginkgo/pull/720"
-    - patch_file: "patches/windows-iterator.patch"
+    - patch_file: "patches/1.3.0-0002-windows-iterator.patch"
       patch_type: "official"
       patch_description: "Fixes for MSVC compatibility"
       patch_source: "https://github.com/ginkgo-project/ginkgo/pull/665"

recipes/ginkgo/all/patches/1.7.0-0002-msvc-c++20.patch

@@ -0,0 +1,14 @@
+diff --git a/include/ginkgo/core/base/std_extensions.hpp b/include/ginkgo/core/base/std_extensions.hpp
+index 1064ae464..d9966c058 100644
+--- a/include/ginkgo/core/base/std_extensions.hpp
++++ b/include/ginkgo/core/base/std_extensions.hpp
+@@ -73,7 +73,8 @@ using void_t = typename detail::make_void<Ts...>::type;
+ // Disable deprecation warnings when using standard > C++14
+ inline bool uncaught_exception() noexcept
+ {
+-#if __cplusplus > 201402L
++// MSVC uses _MSVC_LANG as __cplusplus
++#if (defined(_MSVC_LANG) && _MSVC_LANG > 201402L) || __cplusplus > 201402L
+     return std::uncaught_exceptions() > 0;
+ #else
+     return std::uncaught_exception();