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//
// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
// Copyright (c) 2021-2022 Alexander Grund
//
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#ifndef BOOST_SRC_ICU_UTIL_HPP
#define BOOST_SRC_ICU_UTIL_HPP
#include <boost/locale/config.hpp>
#include <cstdint> // Avoid ICU defining e.g. INT8_MIN causing macro redefinition warnings
#include <stdexcept>
#include <string>
#include <unicode/utypes.h>
#include <unicode/uversion.h>
#define BOOST_LOCALE_ICU_VERSION (U_ICU_VERSION_MAJOR_NUM * 100 + U_ICU_VERSION_MINOR_NUM)
namespace boost { namespace locale { namespace impl_icu {
inline void throw_icu_error(UErrorCode err, std::string desc) // LCOV_EXCL_LINE
{
if(!desc.empty()) // LCOV_EXCL_LINE
desc += ": "; // LCOV_EXCL_LINE
throw std::runtime_error(desc + u_errorName(err)); // LCOV_EXCL_LINE
}
inline void check_and_throw_icu_error(UErrorCode err, const char* desc = "")
{
if(U_FAILURE(err))
throw_icu_error(err, desc); // LCOV_EXCL_LINE
}
/// Cast a pointer to an ICU object to a pointer to TargetType
/// using RTTI or ICUs "poor man's RTTI" to make it work with e.g. libc++ and hidden visibility
template<class TargetType, class SourceType>
TargetType* icu_cast(SourceType* p)
{
TargetType* result = dynamic_cast<TargetType*>(p);
if(!result && p && p->getDynamicClassID() == TargetType::getStaticClassID())
result = static_cast<TargetType*>(p);
return result;
}
}}} // namespace boost::locale::impl_icu
#endif
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