fix C26451 warnning in serializer.hpp for VS2019

nlohmann · Mar 23, 2020 · 59cb4c9 · 59cb4c9
1 parent 0feea61
commit 59cb4c9
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/include/nlohmann/detail/output/serializer.hpp b/include/nlohmann/detail/output/serializer.hpp
@@ -807,7 +807,9 @@ class serializer
                 ? (byte & 0x3fu) | (codep << 6u)
                 : (0xFFu >> type) & (byte);
 
-        state = utf8d[256u + state * 16u + type];
+        std::size_t index = 256u + static_cast<size_t>(state) * 16u + static_cast<size_t>(type);
+        assert(0 <= index and index < 400);
+        state = utf8d[index];
         return state;
     }
 

diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
@@ -14552,7 +14552,9 @@ class serializer
                 ? (byte & 0x3fu) | (codep << 6u)
                 : (0xFFu >> type) & (byte);
 
-        state = utf8d[256u + state * 16u + type];
+        std::size_t index = 256u + static_cast<size_t>(state) * 16u + static_cast<size_t>(type);
+        assert(0 <= index and index < 400);
+        state = utf8d[index];
         return state;
     }