mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 13:42:02 +00:00
106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
// Copyright Kevlin Henney, 2000-2005.
|
|
// Copyright Alexander Nasonov, 2006-2010.
|
|
// Copyright Antony Polukhin, 2011-2014.
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See
|
|
// accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
// what: lexical_cast custom keyword cast
|
|
// who: contributed by Kevlin Henney,
|
|
// enhanced with contributions from Terje Slettebo,
|
|
// with additional fixes and suggestions from Gennaro Prota,
|
|
// Beman Dawes, Dave Abrahams, Daryle Walker, Peter Dimov,
|
|
// Alexander Nasonov, Antony Polukhin, Justin Viiret, Michael Hofmann,
|
|
// Cheng Yang, Matthew Bradbury, David W. Birdsall, Pavel Korzh and other Boosters
|
|
// when: November 2000, March 2003, June 2005, June 2006, March 2011 - 2014
|
|
|
|
#ifndef BOOST_LEXICAL_CAST_INCLUDED
|
|
#define BOOST_LEXICAL_CAST_INCLUDED
|
|
|
|
#include <boost/config.hpp>
|
|
#ifdef BOOST_HAS_PRAGMA_ONCE
|
|
# pragma once
|
|
#endif
|
|
|
|
#if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
|
|
#define BOOST_LCAST_NO_WCHAR_T
|
|
#endif
|
|
|
|
#include <boost/range/iterator_range_core.hpp>
|
|
#include <boost/lexical_cast/bad_lexical_cast.hpp>
|
|
#include <boost/lexical_cast/try_lexical_convert.hpp>
|
|
|
|
namespace boost
|
|
{
|
|
template <typename Target, typename Source>
|
|
inline Target lexical_cast(const Source &arg)
|
|
{
|
|
Target result = Target();
|
|
|
|
if (!boost::conversion::detail::try_lexical_convert(arg, result)) {
|
|
boost::conversion::detail::throw_bad_cast<Source, Target>();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
template <typename Target>
|
|
inline Target lexical_cast(const char* chars, std::size_t count)
|
|
{
|
|
return ::boost::lexical_cast<Target>(
|
|
::boost::iterator_range<const char*>(chars, chars + count)
|
|
);
|
|
}
|
|
|
|
template <typename Target>
|
|
inline Target lexical_cast(const unsigned char* chars, std::size_t count)
|
|
{
|
|
return ::boost::lexical_cast<Target>(
|
|
::boost::iterator_range<const unsigned char*>(chars, chars + count)
|
|
);
|
|
}
|
|
|
|
template <typename Target>
|
|
inline Target lexical_cast(const signed char* chars, std::size_t count)
|
|
{
|
|
return ::boost::lexical_cast<Target>(
|
|
::boost::iterator_range<const signed char*>(chars, chars + count)
|
|
);
|
|
}
|
|
|
|
#ifndef BOOST_LCAST_NO_WCHAR_T
|
|
template <typename Target>
|
|
inline Target lexical_cast(const wchar_t* chars, std::size_t count)
|
|
{
|
|
return ::boost::lexical_cast<Target>(
|
|
::boost::iterator_range<const wchar_t*>(chars, chars + count)
|
|
);
|
|
}
|
|
#endif
|
|
#ifndef BOOST_NO_CXX11_CHAR16_T
|
|
template <typename Target>
|
|
inline Target lexical_cast(const char16_t* chars, std::size_t count)
|
|
{
|
|
return ::boost::lexical_cast<Target>(
|
|
::boost::iterator_range<const char16_t*>(chars, chars + count)
|
|
);
|
|
}
|
|
#endif
|
|
#ifndef BOOST_NO_CXX11_CHAR32_T
|
|
template <typename Target>
|
|
inline Target lexical_cast(const char32_t* chars, std::size_t count)
|
|
{
|
|
return ::boost::lexical_cast<Target>(
|
|
::boost::iterator_range<const char32_t*>(chars, chars + count)
|
|
);
|
|
}
|
|
#endif
|
|
|
|
} // namespace boost
|
|
|
|
#undef BOOST_LCAST_NO_WCHAR_T
|
|
|
|
#endif // BOOST_LEXICAL_CAST_INCLUDED
|
|
|