之前在文章中分享的解決中文亂碼方案都是藉助於libiconv庫的,畢竟是第三方的庫,雖然我已經編譯好了版本可以直接使用,但有的朋友還是遇到各種各樣的問題。這篇分享一個C++11中自帶的字節編碼轉換庫,使用這個就可以踢開libiconv庫了。Linux下g++需要5.0以上版本,否則會報找不到函數。
方法很簡單,只需要將文章中的i文件改爲如下就可以:
%module(directors="1") thosttraderapi
%{
#include "ThostFtdcTraderApi.h"
#include <codecvt>
#include <locale>
#include <vector>
#include <string>
using namespace std;
#ifdef _MSC_VER
const static locale g_loc("zh-CN");
#else
const static locale g_loc("zh_CN.GB18030");
#endif
%}
%typemap(out) char[ANY], char[] {
const std::string &gb2312($1);
std::vector<wchar_t> wstr(gb2312.size());
wchar_t* wstrEnd = nullptr;
const char* gbEnd = nullptr;
mbstate_t state = {};
int res = use_facet<codecvt<wchar_t, char, mbstate_t> >
(g_loc).in(state,
gb2312.data(), gb2312.data() + gb2312.size(), gbEnd,
wstr.data(), wstr.data() + wstr.size(), wstrEnd);
if (codecvt_base::ok == res)
{
wstring_convert<codecvt_utf8<wchar_t>> cutf8;
std::string result = cutf8.to_bytes(wstring(wstr.data(), wstrEnd));
resultobj = SWIG_FromCharPtrAndSize(result.c_str(), result.size());
}
else
{
std::string result;
resultobj = SWIG_FromCharPtrAndSize(result.c_str(), result.size());
}
}
%feature("director") CThostFtdcTraderSpi;
%ignore THOST_FTDC_VTC_BankBankToFuture;
%ignore THOST_FTDC_VTC_BankFutureToBank;
%ignore THOST_FTDC_VTC_FutureBankToFuture;
%ignore THOST_FTDC_VTC_FutureFutureToBank;
%ignore THOST_FTDC_FTC_BankLaunchBankToBroker;
%ignore THOST_FTDC_FTC_BrokerLaunchBankToBroker;
%ignore THOST_FTDC_FTC_BankLaunchBrokerToBank;
%ignore THOST_FTDC_FTC_BrokerLaunchBrokerToBank;
%feature("director") CThostFtdcTraderSpi;
%include "ThostFtdcUserApiDataType.h"
%include "ThostFtdcUserApiStruct.h"
%include "ThostFtdcTraderApi.h"
然後再按原步驟,swig生成wrap file,編譯即可。