commit eb40a5467207cbfce3217fcef052d90a37c17b53
author xaphier <el.3d.source@gmail.com> Fri Sep 29 08:17:52 2023 +0200
committer GitHub <noreply@github.com> Thu Sep 28 23:17:52 2023 -0700
tree 9b599b2b5a4ea86fdba7fd944d3079ffc7d50c4a
parent 15f16f149e6345fe9a172e2c071cf8e351c5aa91

Add constexpr for bitmask operators (#8037)

Co-authored-by: Derek Bailey <derekbailey@google.com>

include/flatbuffers/flatbuffers.h

diff --git a/include/flatbuffers/flatbuffers.h b/include/flatbuffers/flatbuffers.h
index bc828a3..cbb0c53 100644
--- a/include/flatbuffers/flatbuffers.h
+++ b/include/flatbuffers/flatbuffers.h
@@ -248,31 +248,31 @@
 
 // clang-format off
 #define FLATBUFFERS_DEFINE_BITMASK_OPERATORS(E, T)\
-    inline E operator | (E lhs, E rhs){\
+    inline FLATBUFFERS_CONSTEXPR_CPP11 E operator | (E lhs, E rhs){\
         return E(T(lhs) | T(rhs));\
     }\
-    inline E operator & (E lhs, E rhs){\
+    inline FLATBUFFERS_CONSTEXPR_CPP11 E operator & (E lhs, E rhs){\
         return E(T(lhs) & T(rhs));\
     }\
-    inline E operator ^ (E lhs, E rhs){\
+    inline FLATBUFFERS_CONSTEXPR_CPP11 E operator ^ (E lhs, E rhs){\
         return E(T(lhs) ^ T(rhs));\
     }\
-    inline E operator ~ (E lhs){\
+    inline FLATBUFFERS_CONSTEXPR_CPP11 E operator ~ (E lhs){\
         return E(~T(lhs));\
     }\
-    inline E operator |= (E &lhs, E rhs){\
+    inline FLATBUFFERS_CONSTEXPR_CPP11 E operator |= (E &lhs, E rhs){\
         lhs = lhs | rhs;\
         return lhs;\
     }\
-    inline E operator &= (E &lhs, E rhs){\
+    inline FLATBUFFERS_CONSTEXPR_CPP11 E operator &= (E &lhs, E rhs){\
         lhs = lhs & rhs;\
         return lhs;\
     }\
-    inline E operator ^= (E &lhs, E rhs){\
+    inline FLATBUFFERS_CONSTEXPR_CPP11 E operator ^= (E &lhs, E rhs){\
         lhs = lhs ^ rhs;\
         return lhs;\
     }\
-    inline bool operator !(E rhs) \
+    inline FLATBUFFERS_CONSTEXPR_CPP11 bool operator !(E rhs) \
     {\
         return !bool(T(rhs)); \
     }