40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
//
|
|
// Copyright (c) 2019-2024 Ruben Perez Hidalgo (rubenperez038 at gmail dot com)
|
|
//
|
|
// 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)
|
|
//
|
|
|
|
#ifndef BOOST_MYSQL_IMPL_INTERNAL_CALL_NEXT_CHAR_HPP
|
|
#define BOOST_MYSQL_IMPL_INTERNAL_CALL_NEXT_CHAR_HPP
|
|
|
|
#include <boost/mysql/character_set.hpp>
|
|
|
|
#include <boost/assert.hpp>
|
|
|
|
#include <cstddef>
|
|
|
|
namespace boost {
|
|
namespace mysql {
|
|
namespace detail {
|
|
|
|
inline std::size_t call_next_char(const character_set& charset, const char* first, const char* last) noexcept
|
|
{
|
|
// Range must be non-empty
|
|
BOOST_ASSERT(last > first);
|
|
|
|
// ASCII characters are always 1 byte (UTF-16 and friends are not supported)
|
|
auto* data = reinterpret_cast<const unsigned char*>(first);
|
|
if (*data < 0x80)
|
|
return 1u;
|
|
|
|
// May be a multi-byte character. Call the relevant function
|
|
return charset.next_char({data, static_cast<std::size_t>(last - first)});
|
|
}
|
|
|
|
} // namespace detail
|
|
} // namespace mysql
|
|
} // namespace boost
|
|
|
|
#endif
|