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分享右键可以转到定义，但是编译时报错，提示未声明标识符
使用托管C++封装一个非托管C++写的API（为了给C#调用）。封装另一个API却可以，API的编写风格是一致的。到底是怎么回事呢
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littlemxz 2013-10-08
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没有using ThostFtdcLevel2UserApi.h 的namespace
xiaohuh421 2013-09-28
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#include "StdAfx.h"
#pragma once
这个位置需要换一下
91program 2013-09-28
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是的，大概是这样的。右键可跳转，说明是有定义的、但没有正确的包含。
真相重于对错 2013-09-28
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大致看了下，应该是头文件包含问题
modyaj 2013-09-27
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大家能猜出个啥91program 2013-09-27
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是的，上代码来分析。
真相重于对错 2013-09-27
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具体代码
？？
littlemxz 2013-09-27
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代码按照输出那里的顺序，省略的内容用省略号表示，C开头的结构体是在API提供的头文件里边定义的，在Delegates.h遇到第一个C开头的结构体就开始报错，“错误 1 error C2144: 语法错误:“void”的前面应有“;””
Stdafx.h
#pragma once#include "stdafx.h"#pragma once#include "StdAfx.h"
#include "StdAfx.h"
#pragma once
#include "..\thosttraderapi\ThostFtdcLevel2UserApi.h"
#include "Struct.h"
#include "Delegates.h"
using namespace CTP;
namespace Native
{
/// 非托管类,自动释放字符串指针内存
class CAutoStrPtr
{
public:
char* m_pChar;
//int m_Length;
CAutoStrPtr(String^ str);
//CAutoStrPtr(String^ str, void* pDst, int length);
~CAutoStrPtr();
};
/// 非托管类, 自动转换 Managed <==> Native
// M: managed
// N: native
template<typename M, typename N>
class MNConv
{
public:
// 模版类的实现部分必须放在头文件里，否则链接会出错
/// Native to Managed
static M N2M(N* pNative){
return safe_cast<M>(Marshal::PtrToStructure(IntPtr(pNative), M::typeid));
};
// Managed to Native
static void M2N(M managed, N* pNative){
Marshal::StructureToPtr(managed, IntPtr(pNative), true);
};
};
/// 全局函数
ThostFtdcRspInfoField^ RspInfoField(CThostFtdcRspInfoField *pRspInfo);
};
#include "StdAfx.h"
#include "Util.h"
#include <string.h>
#include <memory.h>
#include <stdlib.h>
using namespace System::Runtime::InteropServices;
namespace Native
{
CAutoStrPtr::CAutoStrPtr(String^ str)
{
if(str != nullptr)
{
m_pChar = (char*) Marshal::StringToHGlobalAnsi(str).ToPointer();
//m_Length = strlen(m_pChar);
}
else
m_pChar = nullptr;
}
CAutoStrPtr::~CAutoStrPtr()
{
if(m_pChar != nullptr)
Marshal::FreeHGlobal(IntPtr(m_pChar));
}
ThostFtdcRspInfoField^ RspInfoField(CThostFtdcRspInfoField *pRspInfo)
{
return safe_cast<ThostFtdcRspInfoField^>(Marshal::PtrToStructure(IntPtr(pRspInfo), ThostFtdcRspInfoField::typeid));
}
}
#pragma once
using namespace System;
using namespace System::Runtime::InteropServices;
namespace CTP
{
public enum struct EnumTeResumeType //THOST_TE_RESUME_TYPE
{
THOST_TERT_RESTART = 0,
THOST_TERT_RESUME,
THOST_TERT_QUICK
};
/////////////////////////////////////////////////////////////////////////
///TFtdcInstrumentStatusType是º?一°?个?合?约?交?易°¡Á状Á¡ä态¬?类¤¨¤型¨ª
/////////////////////////////////////////////////////////////////////////
public enum struct EnumInstrumentStatusType: Byte
{
/// <summary>
///开a盘¨¬前¡ã
/// </summary>
BeforeTrading = (Byte)'0',
/// <summary>
///非¤?交?易°¡Á
/// </summary>
NoTrading = (Byte)'1',
/// <summary>
///连¢?续?交?易°¡Á
/// </summary>
Continous = (Byte)'2',
/// <summary>
///集¡¥合?竞o价?报À¡§单Ì£¤
/// </summary>
AuctionOrdering = (Byte)'3',
/// <summary>
///集¡¥合?竞o价?价?格?平?衡a
/// </summary>
AuctionBalance = (Byte)'4',
/// <summary>
///集¡¥合?竞o价?撮䨦合?
/// </summary>
AuctionMatch = (Byte)'5',
/// <summary>
///收º?盘¨¬
/// </summary>
Closed = (Byte)'6'
};
…………………………………
}
#pragma once
namespace CTP
{
// common deleagats
public delegate void FrontConnected();
public delegate void FrontDisconnected(int nReason);
public delegate void HeartBeatWarning(int nTimeLapse);
public delegate void RspUserLogin(ThostFtdcRspUserLoginField^ pRspUserLogin, ThostFtdcRspInfoField^ pRspInfo, int nRequestID, bool bIsLast);
public delegate void RspUserLogout(ThostFtdcUserLogoutField^ pUserLogout, ThostFtdcRspInfoField^ pRspInfo, int nRequestID, bool bIsLast);
public delegate void RspError(ThostFtdcRspInfoField^ pRspInfo, int nRequestID, bool bIsLast);
// marketdata
public delegate void RspSubLevel2MarketData(ThostFtdcSpecificSecurityField^ pSpecificSecurity, ThostFtdcRspInfoField^ pRspInfo, int nRequestID, bool bIsLast);
public delegate void RspUnSubLevel2MarketData(ThostFtdcSpecificSecurityField^ pSpecificSecurity, ThostFtdcRspInfoField^ pRspInfo, int nRequestID, bool bIsLast);
public delegate void RspSubNGTSIndex(ThostFtdcSpecificSecurityField^ pSpecificSecurity, ThostFtdcRspInfoField^ pRspInfo, int nRequestID, bool bIsLast);
public delegate void RspUnSubNGTSIndex(ThostFtdcSpecificSecurityField^ pSpecificSecurity, ThostFtdcRspInfoField^ pRspInfo, int nRequestID, bool bIsLast);
public delegate void RtnLevel2MarketData(ThostFtdcLevel2MarketDataField^ pLevel2MarketData);
public delegate void RtnNGTSIndex(ThostFtdcNGTSIndexField^ pNGTSIndex);
};
#ifdef __CTP_MA__
namespace Native
{
delegate void Internal_FrontConnected();
delegate void Internal_FrontDisconnected(int nReason);
delegate void Internal_HeartBeatWarning(int nTimeLapse);
delegate void Internal_RspError(CThostFtdcRspInfoField *pRspInfo, int nRequestID, bool bIsLast);
delegate void Internal_RspUserLogin(CThostFtdcRspUserLoginField *pRspUserLogin, CThostFtdcRspInfoField *pRspInfo, int nRequestID, bool bIsLast);
delegate void Internal_RspUserLogout(CThostFtdcUserLogoutField *pUserLogout, CThostFtdcRspInfoField *pRspInfo, int nRequestID, bool bIsLast);
delegate void Internal_RspSubLevel2MarketData(CThostFtdcSpecificSecurityField *pSpecificSecurity, CThostFtdcRspInfoField *pRspInfo, int nRequestID, bool bIsLast);
delegate void Internal_RspUnSubLevel2MarketData(CThostFtdcSpecificSecurityField *pSpecificSecurity, CThostFtdcRspInfoField *pRspInfo, int nRequestID, bool bIsLast);
delegate void Internal_RspSubNGTSIndex(CThostFtdcSpecificSecurityField *pSpecificSecurity, CThostFtdcRspInfoField *pRspInfo, int nRequestID, bool bIsLast);
delegate void Internal_RspUnSubNGTSIndex(CThostFtdcSpecificSecurityField *pSpecificSecurity, CThostFtdcRspInfoField *pRspInfo, int nRequestID, bool bIsLast);
delegate void Internal_RtnLevel2MarketData(CThostFtdcLevel2MarketDataField *pLevel2MarketData);
delegate void Internal_RtnNGTSIndex(CThostFtdcNGTSIndexField *pNGTSIndex);
};
#endif
xiaohuh421 2013-09-27
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能转到定义, VS经常有这个的错误.
一切都要以编译器为准, 它说没定义, 就是没定义.
我是 " Alt+G " "转到定义" 两个都用, 有时候一个失效的时候, 另一个能工作得很好.
