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Fix the parsing error when JSONCPP parses the value of 5E-324 with libc++

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Signed-off-by: hufeng <hufeng20@huawei.com>
Change-Id: I1aaef25e133af8a1177713280c2f6657db182e81
This commit is contained in:
hufeng 2022-03-20 19:26:24 +08:00
parent bd47b3c0be
commit 539859dc3d
1 changed files with 6 additions and 0 deletions
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6
src/lib_json/json_reader.cpp
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@ -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);
}