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Contents
// Copyright (c) 2014-2020 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
#ifndef TAO_JSON_PEGTL_ANALYSIS_INSERT_GUARD_HPP
#define TAO_JSON_PEGTL_ANALYSIS_INSERT_GUARD_HPP
#include <utility>
#include "../config.hpp"
namespace TAO_JSON_PEGTL_NAMESPACE::analysis
{
template< typename C >
class insert_guard
{
public:
insert_guard( C& container, const typename C::value_type& value )
: m_i( container.insert( value ) ),
m_c( container )
{
}
insert_guard( const insert_guard& ) = delete;
insert_guard( insert_guard&& ) = delete;
~insert_guard()
{
if( m_i.second ) {
m_c.erase( m_i.first );
}
}
void operator=( const insert_guard& ) = delete;
void operator=( insert_guard&& ) = delete;
explicit operator bool() const noexcept
{
return m_i.second;
}
private:
const std::pair< typename C::iterator, bool > m_i;
C& m_c;
};
template< typename C >
insert_guard( C&, const typename C::value_type& )->insert_guard< C >;
} // namespace TAO_JSON_PEGTL_NAMESPACE::analysis
#endif
Version data entries
24 entries across 24 versions & 1 rubygems