获取应用当前路径

MFC

CString appPath;
GetModuleFileName(NULL,appPath.GetBuffer(MAX_PATH),MAX_PATH);
appPath.ReleaseBuffer();
appPath = appPath.Left( appPath.ReverseFind('\\') + 1);

win32

string getAppPath()
{
    TCHAR path[MAX_PATH + 2] = { '\0' };
    if (0 == GetModuleFileName(NULL, path, MAX_PATH))
    {
        //failed
        AfxMessageBox(TEXT("Get File Path Failed"));
        ASSERT(FALSE);
    }
    TCHAR* pf = _tcsrchr(path, '\\');//strrchr
    if (NULL == pf)
    {
        //not found
        AfxMessageBox(TEXT("Invalide File Path"));
        ASSERT(FALSE);
    }
    *(pf + 1) = '\0';//path is xx\\
                    
    string str = &path[0];
    return str;
}

Linux

int GetAppPath(std::string &sPath)
{
    char buf[4097] = { 0 };
    long size;
    char *ptr;
    size = pathconf(".", _PC_PATH_MAX);
    if ((ptr = new char(size)) != NULL)
    {
        memset(ptr, 0, size);
        sprintf(ptr, "/proc/%d/exe", getpid());
    } else return -1;
    readlink(ptr, buf, size);
    delete[] ptr;
    ptr = NULL;
    sPath = buf;
    int nPos = sPath.find_last_of("/");
    sPath = sPath.substr(0, nPos + 1);
    return 0;
}