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/**
* \file libipc/codecvt.h
* \author mutouyun (orz@orzz.org)
* \brief Character set conversion interface.
*/
#pragma once
#include <string>
#include <cstddef>
#include "libipc/imp/export.h"
namespace ipc {
/**
* \brief The transform between UTF-8/16/32
*
* \param des The target string pointer can be nullptr
* \param dlen The target string length can be 0
*/
template <typename CharT, typename CharU>
LIBIPC_EXPORT std::size_t cvt_cstr(CharT const *src, std::size_t slen, CharU *des, std::size_t dlen) noexcept;
template <typename CharT, typename TraitsT, typename AllocT,
typename CharU, typename TraitsU, typename AllocU>
void cvt_sstr(std::basic_string<CharT, TraitsT, AllocT> const &src, std::basic_string<CharU, TraitsU, AllocU> &des) {
std::size_t dlen = cvt_cstr(src.c_str(), src.size(), (CharU *)nullptr, 0);
if (dlen == 0) {
des.clear();
return;
}
des.resize(dlen);
cvt_cstr(src.c_str(), src.size(), &des[0], des.size());
}
} // namespace ipc
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