third_party_jsoncpp/Fix error whenparses the value of 5E-324 with libc++.patch
fangyunzhong cac3aed223 Fix error whenparses the value of 5E-324 with libc++
Signed-off-by: fangyunzhong <fangyunzhong2@huawei.com>
2023-12-13 14:53:26 +08:00

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865 B
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Executable File

diff --git a/src/lib_json/json_reader.cpp b/src/lib_json/json_reader.cpp
index f233abb..8f4c544 100755
--- a/src/lib_json/json_reader.cpp
+++ b/src/lib_json/json_reader.cpp
@@ -1666,6 +1666,12 @@ bool OurReader::decodeDouble(Token& token, Value& decoded) {
const String buffer(token.start_, token.end_);
IStringStream is(buffer);
if (!(is >> value)) {
+ // the value could be lower than numeric_limits<double>::min(), in this situtation we should return the value with the gurantee
+ // of conversion which has been performed and no occurances of range error.
+ if ((value > 0 && value < std::numeric_limits<double>::min()) || (value < 0 && value > -std::numeric_limits<double>::min())) {
+ decoded = value;
+ return true;
+ }
return addError(
"'" + String(token.start_, token.end_) + "' is not a number.", token);
}