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-rw-r--r--SConstruct2
-rw-r--r--core/typedefs.h3
2 files changed, 5 insertions, 0 deletions
diff --git a/SConstruct b/SConstruct
index 0297cd6e61..5c1ccd2449 100644
--- a/SConstruct
+++ b/SConstruct
@@ -791,6 +791,8 @@ else:
# Note that this is still not complete conformance, as certain Windows-related headers
# don't compile under complete conformance.
env.Prepend(CCFLAGS=["/permissive-"])
+ # Allow use of `__cplusplus` macro to determine C++ standard universally.
+ env.Prepend(CXXFLAGS=["/Zc:__cplusplus"])
# Disable exception handling. Godot doesn't use exceptions anywhere, and this
# saves around 20% of binary size and very significant build time (GH-80513).
diff --git a/core/typedefs.h b/core/typedefs.h
index 0de803293d..35c4668581 100644
--- a/core/typedefs.h
+++ b/core/typedefs.h
@@ -44,6 +44,9 @@
#include "core/error/error_list.h"
#include <cstdint>
+// Ensure that C++ standard is at least C++17. If on MSVC, also ensures that the `Zc:__cplusplus` flag is present.
+static_assert(__cplusplus >= 201703L);
+
// Turn argument to string constant:
// https://gcc.gnu.org/onlinedocs/cpp/Stringizing.html#Stringizing
#ifndef _STR