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adds ability to parse infinity

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This commit is contained in:
Shane Grant
2013-12-20 10:11:29 -08:00
parent f178572e77
commit a4b438e59e
1 changed files with 21 additions and 8 deletions
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include/cereal/external/rapidjson/reader.h
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+21 -8
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@@ -329,7 +329,7 @@ private:
// Parses for null or NaN
template<unsigned parseFlags, typename Stream, typename Handler>
void ParseNull(Stream& stream, Handler& handler) {
void ParseNaNNull(Stream& stream, Handler& handler) {
RAPIDJSON_ASSERT(stream.Peek() == 'n');
stream.Take();
@@ -341,6 +341,18 @@ private:
RAPIDJSON_PARSE_ERROR("Invalid value", stream.Tell() - 1);
}
// Parses for infinity
template<unsigned parseFlags, typename Stream, typename Handler>
void ParseInfinity(Stream& stream, Handler& handler) {
RAPIDJSON_ASSERT(stream.Peek() == 'i');
stream.Take();
if (stream.Take() == 'n' && stream.Take() == 'f')
handler.Double( std::numeric_limits<double>::infinity() );
else
RAPIDJSON_PARSE_ERROR("Invalid value", stream.Tell() - 1);
}
template<unsigned parseFlags, typename Stream, typename Handler>
void ParseTrue(Stream& stream, Handler& handler) {
RAPIDJSON_ASSERT(stream.Peek() == 't');
@@ -688,13 +700,14 @@ private:
template<unsigned parseFlags, typename Stream, typename Handler>
void ParseValue(Stream& stream, Handler& handler) {
switch (stream.Peek()) {
case 'n': ParseNull <parseFlags>(stream, handler); break;
case 't': ParseTrue <parseFlags>(stream, handler); break;
case 'f': ParseFalse <parseFlags>(stream, handler); break;
case '"': ParseString<parseFlags>(stream, handler); break;
case '{': ParseObject<parseFlags>(stream, handler); break;
case '[': ParseArray <parseFlags>(stream, handler); break;
default : ParseNumber<parseFlags>(stream, handler);
case 'n': ParseNaNNull <parseFlags>(stream, handler); break;
case 'i': ParseInfinity <parseFlags>(stream, handler); break;
case 't': ParseTrue <parseFlags>(stream, handler); break;
case 'f': ParseFalse <parseFlags>(stream, handler); break;
case '"': ParseString <parseFlags>(stream, handler); break;
case '{': ParseObject <parseFlags>(stream, handler); break;
case '[': ParseArray <parseFlags>(stream, handler); break;
default : ParseNumber <parseFlags>(stream, handler);
}
}