0b6a182c
 Hu Chunming
添加无鉴权注册和注销
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#ifndef BOOST_SYSTEM_DETAIL_SNPRINTF_HPP_INCLUDED
#define BOOST_SYSTEM_DETAIL_SNPRINTF_HPP_INCLUDED
// Copyright 2018, 2020, 2021 Peter Dimov
//
// 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)
//
// See library home page at http://www.boost.org/libs/system
#include <boost/config.hpp>
#include <cstdio>
#include <cstdarg>
//
namespace boost
{
namespace system
{
namespace detail
{
#if ( defined(_MSC_VER) && _MSC_VER < 1900 ) || ( defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR) )
inline void snprintf( char * buffer, std::size_t len, char const * format, ... )
{
# if defined( BOOST_MSVC )
# pragma warning( push )
# pragma warning( disable: 4996 )
# endif
if( len == 0 ) return;
va_list args;
va_start( args, format );
_vsnprintf( buffer, len - 1, format, args );
buffer[ len - 1 ] = 0;
va_end( args );
# if defined( BOOST_MSVC )
# pragma warning( pop )
# endif
}
#else
#if defined(__GNUC__) && __GNUC__ >= 3
__attribute__((__format__ (__printf__, 3, 4)))
#endif
inline void snprintf( char * buffer, std::size_t len, char const * format, ... )
{
va_list args;
va_start( args, format );
std::vsnprintf( buffer, len, format, args );
va_end( args );
}
#endif
} // namespace detail
} // namespace system
} // namespace boost
#endif // #ifndef BOOST_SYSTEM_DETAIL_SNPRINTF_HPP_INCLUDED
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