Fix overflow exception when serializing

t5scc · t5scc · commit f0d45a44f7af · 2023-03-09T16:53:09.000+08:00
diff --git a/Release/src/utilities/asyncrt_utils.cpp b/Release/src/utilities/asyncrt_utils.cpp
@@ -502,7 +502,7 @@ inline size_t count_utf16_to_utf8(const utf16string& w)
                 throw std::range_error("UTF-16 string is missing low surrogate");
             }
 
-            const auto lowSurrogate = srcData[index];
+            const auto lowSurrogate = static_cast<int>(srcData[index]);
             if (lowSurrogate < L_SURROGATE_START || lowSurrogate > L_SURROGATE_END)
             {
                 throw std::range_error("UTF-16 string has invalid low surrogate");

Original file line number	Diff line number	Diff line change
`@@ -502,7 +502,7 @@ inline size_t count_utf16_to_utf8(const utf16string& w)`
`502`	`502`	`throw std::range_error("UTF-16 string is missing low surrogate");`
`503`	`503`	`}`
`504`	`504`
`505`		`- const auto lowSurrogate = srcData[index];`
	`505`	`+ const auto lowSurrogate = static_cast<int>(srcData[index]);`
`506`	`506`	`if (lowSurrogate < L_SURROGATE_START \|\| lowSurrogate > L_SURROGATE_END)`
`507`	`507`	`{`
`508`	`508`	`throw std::range_error("UTF-16 string has invalid low surrogate");`