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Merge pull request #862 from StilesCrisis/nan-inf-parse-fix

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NaN/Inf parse fix
This commit is contained in:
Milo Yip 2017-02-24 09:47:11 +08:00 committed by GitHub
commit 0eaa0d288c
2 changed files with 22 additions and 9 deletions
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27
include/rapidjson/reader.h
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@ -1170,18 +1170,27 @@ private:
}
// Parse NaN or Infinity here
else if ((parseFlags & kParseNanAndInfFlag) && RAPIDJSON_LIKELY((s.Peek() == 'I' || s.Peek() == 'N'))) {
useNanOrInf = true;
if (RAPIDJSON_LIKELY(Consume(s, 'N') && Consume(s, 'a') && Consume(s, 'N'))) {
d = std::numeric_limits<double>::quiet_NaN();
if (Consume(s, 'N')) {
if (Consume(s, 'a') && Consume(s, 'N')) {
d = std::numeric_limits<double>::quiet_NaN();
useNanOrInf = true;
}
}
else if (RAPIDJSON_LIKELY(Consume(s, 'I') && Consume(s, 'n') && Consume(s, 'f'))) {
d = (minus ? -std::numeric_limits<double>::infinity() : std::numeric_limits<double>::infinity());
if (RAPIDJSON_UNLIKELY(s.Peek() == 'i' && !(Consume(s, 'i') && Consume(s, 'n')
&& Consume(s, 'i') && Consume(s, 't') && Consume(s, 'y'))))
RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
else if (RAPIDJSON_LIKELY(Consume(s, 'I'))) {
if (Consume(s, 'n') && Consume(s, 'f')) {
d = (minus ? -std::numeric_limits<double>::infinity() : std::numeric_limits<double>::infinity());
useNanOrInf = true;
if (RAPIDJSON_UNLIKELY(s.Peek() == 'i' && !(Consume(s, 'i') && Consume(s, 'n')
&& Consume(s, 'i') && Consume(s, 't') && Consume(s, 'y')))) {
RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
}
}
}
else
if (RAPIDJSON_UNLIKELY(!useNanOrInf)) {
RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());
}
}
else
RAPIDJSON_PARSE_ERROR(kParseErrorValueInvalid, s.Tell());

4
test/unittest/readertest.cpp
View File

@ -1832,6 +1832,10 @@ TEST(Reader, ParseNanAndInfinity) {
TEST_NAN_INF("Infinity", inf);
TEST_NAN_INF("-Inf", -inf);
TEST_NAN_INF("-Infinity", -inf);
TEST_NAN_INF_ERROR(kParseErrorValueInvalid, "NInf", 1);
TEST_NAN_INF_ERROR(kParseErrorValueInvalid, "NaInf", 2);
TEST_NAN_INF_ERROR(kParseErrorValueInvalid, "INan", 1);
TEST_NAN_INF_ERROR(kParseErrorValueInvalid, "InNan", 2);
TEST_NAN_INF_ERROR(kParseErrorValueInvalid, "nan", 1);
TEST_NAN_INF_ERROR(kParseErrorValueInvalid, "-nan", 1);
TEST_NAN_INF_ERROR(kParseErrorValueInvalid, "NAN", 1);