Detect: Add __STDCPP_DEFAULT_NEW_ALIGNMENT__ predefined VS macro

This macro is missing from the main MSVC predefined macro list but is
documented by [1] and [2].  Also add `__STDCPP_STRICT_POINTER_SAFETY__`
as documented by [2] in case MSVC ever starts defining it.

[1] https://docs.microsoft.com/en-us/cpp/build/reference/zc-alignednew
[2] https://en.cppreference.com/w/cpp/preprocessor/replace

Fixes: #125

1 files changed, 9 insertions, 1 deletions

diff --git a/test/cc-msvc.c b/test/cc-msvc.c
index 45feff8..b20121e 100644
--- a/test/cc-msvc.c
+++ b/test/cc-msvc.c
@@ -6,14 +6,17 @@ int main(int argc, const char* argv[])
   int cpp = 0;
   const char* msc_ver = "1600";
   const char* msvc_lang = 0;
+  const char* stdcpp_default_new_alignment = 0;
   int i;
   for (i = 1; i < argc; ++i) {
     if (strncmp(argv[i], "--cc-define=", 12) == 0) {
       fprintf(stdout, "\n#define %s 1", argv[i]+12);
     } else if (strncmp(argv[i], "-msc=", 5) == 0) {
       msc_ver = argv[i]+5;
-    } else if (strncmp(argv[i], "-msvc_lang=", 8) == 0) {
+    } else if (strncmp(argv[i], "-msvc_lang=", 11) == 0) {
       msvc_lang = argv[i]+11;
+    } else if (strncmp(argv[i], "-stdcpp_default_new_alignment=", 30) == 0) {
+      stdcpp_default_new_alignment = argv[i]+30;
     } else if (strstr(argv[i], ".cpp")) {
       cpp = 1;
     }
@@ -34,6 +37,11 @@ int main(int argc, const char* argv[])
       "#define _MSVC_LANG %s\n", msvc_lang
       );
   }
+  if(stdcpp_default_new_alignment) {
+    fprintf(stdout,
+      "#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ %s\n",
+      stdcpp_default_new_alignment);
+  }
   fprintf(stdout,
     "#define __has_include(x) x\n"
     "#define __has_include_next(x) x\n"