C++ (Cpp) AllocSpaceWBack示例

示例#1

文件： stream.cpp 项目： BackupTheBerlios/wxbeos-svn

size_t wxInputStream::Ungetch(const void *buf, size_t bufsize)
{
    if ( m_lasterror != wxSTREAM_NO_ERROR && m_lasterror != wxSTREAM_EOF )
    {
        // can't operate on this stream until the error is cleared
        return 0;
    }

    char *ptrback = AllocSpaceWBack(bufsize);
    if (!ptrback)
        return 0;

    // Eof() shouldn't return true any longer
    if ( m_lasterror == wxSTREAM_EOF )
        m_lasterror = wxSTREAM_NO_ERROR;

    memcpy(ptrback, buf, bufsize);
    return bufsize;
}

示例#2

文件： stream.cpp 项目： hgwells/tive

size_t wxInputStream::Ungetch(const void *buf, size_t bufsize)
{
    wxASSERT_MSG( buf, _T("Warning: Null pointer is about to be used in Ungetch()") );

    if ( m_lasterror != wxSTREAM_NO_ERROR && m_lasterror != wxSTREAM_EOF )
    {
        // can't operate on this stream until the error is cleared
        return 0;
    }

    char *ptrback = AllocSpaceWBack(bufsize);
    if (!ptrback)
        return 0;

    // Eof() shouldn't return true any longer
    if ( m_lasterror == wxSTREAM_EOF )
        m_lasterror = wxSTREAM_NO_ERROR;

    memcpy(ptrback, buf, bufsize);
    return bufsize;
}