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███████████: New fields into example [#METR-18831]

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This commit is contained in:
Dmitry Galuza 2015-11-20 00:48:17 +03:00
parent f0a17a377a
commit 65e912a05c
1 changed files with 21 additions and 4 deletions
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25
dbms/include/DB/IO/ReadHelpers.h
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@ -118,6 +118,14 @@ inline bool checkString(const String & s, ReadBuffer & buf)
return checkString(s.c_str(), buf);
}
inline bool checkChar(char c, ReadBuffer & buf)
{
if (buf.eof() || *buf.position() != c)
return false;
++buf.position();
return true;
}
inline void readBoolText(bool & x, ReadBuffer & buf)
{
char tmp = '0';
@ -250,7 +258,7 @@ bool exceptionPolicySelector(ExcepFun && excep_f, NoExcepFun && no_excep_f, Args
/// грубо
template <typename T, typename ReturnType>
template <typename T, typename ReturnType, char point_symbol = '.'>
ReturnType readFloatTextImpl(T & x, ReadBuffer & buf)
{
static constexpr bool throw_exception = std::is_same<ReturnType, void>::value;
@ -293,9 +301,6 @@ ReturnType readFloatTextImpl(T & x, ReadBuffer & buf)
case '-':
negative = true;
break;
case '.':
after_point = true;
break;
case '0':
case '1':
case '2':
@ -344,6 +349,12 @@ ReturnType readFloatTextImpl(T & x, ReadBuffer & buf)
return ReturnType(parse_special_value("AN", std::numeric_limits<T>::quiet_NaN()));
default:
if (point_symbol == *buf.position())
{
after_point = true;
break;
}
if (negative)
x = -x;
return ReturnType(true);
@ -362,6 +373,12 @@ inline bool tryReadFloatText(T & x, ReadBuffer & buf)
return readFloatTextImpl<T, bool>(x, buf);
}
template <class T>
inline bool tryReadFloatTextUnderscore(T & x, ReadBuffer & buf)
{
return readFloatTextImpl<T, bool, '_'>(x, buf);
}
template <class T>
inline void readFloatText(T & x, ReadBuffer & buf)
{