自学教程：C++ ARRAYLEN函数代码示例

enum plugin_status plugin_start(const void* parameter){    int action, i;    struct jackpot game;    (void)parameter;    rb->srand(*rb->current_tick);#ifdef HAVE_LCD_CHARCELLS    patterns_init(rb->screens[SCREEN_MAIN]);#endif /* HAVE_LCD_CHARCELLS */    jackpot_init(&game);    FOR_NB_SCREENS(i){        rb->screens[i]->clear_display();        jackpot_display_slot_machine(&game, rb->screens[i]);    }    /*Empty the event queue*/    rb->button_clear_queue();    while (true)    {        action = pluginlib_getaction(TIMEOUT_BLOCK,                                plugin_contexts, ARRAYLEN(plugin_contexts));        switch ( action )        {            case PLA_CANCEL:                return PLUGIN_OK;            case PLA_SELECT:                jackpot_play_turn(&game);                break;            default:                if (rb->default_event_handler_ex(action, jackpot_exit, NULL)                    == SYS_USB_CONNECTED)                    return PLUGIN_USB_CONNECTED;                break;        }    }    jackpot_exit(NULL);    return PLUGIN_OK;}

TEST(Utf8Utils, utf8IsValid) {    static const struct {        bool expected;        const char* text;        size_t textLen;    } kData[] = {        DATA(true, ""),        DATA(true, "Hello World!"),        DATA(true, "T/xC3/xA9l/xC3/xA9vision"),        DATA(false, "/x80/x80"),        DATA(true, "/xC1/xB6"),        DATA(false, "/xC0/x7f"),        DATA(true, "foo/xE0/x80/x80"),        DATA(false, "foo/xE0/x80"),    };    const size_t kDataSize = ARRAYLEN(kData);    for (size_t n = 0; n < kDataSize; ++n) {        EXPECT_EQ(kData[n].expected,                  utf8IsValid(kData[n].text,                              kData[n].textLen)) << "#" << n;    }}

mxArray* popPage(){   size_t M,N,maxMN;   double retVal;   mxArray* tmp;   biEntry* cmdStruct = lookupEntry("PageList", vars, ARRAYLEN(vars));   if (cmdStruct->var == NULL)   {      return cmdStruct->getter(cmdStruct);   }   else   {      retVal = mxGetScalar(cmdStruct->var);      M = mxGetM(cmdStruct->var);      N = mxGetN(cmdStruct->var);      maxMN = M > N ? M : N;      tmp = mxCreateDoubleMatrix(1, maxMN - 1, mxREAL);      memcpy(mxGetPr(tmp), mxGetPr(cmdStruct->var) + 1, (maxMN - 1)*sizeof(double));      cmdStruct->setter(cmdStruct, tmp);      return mxCreateDoubleScalar(retVal);   }}

void settings_apply_skins(void){    char buf[MAX_PATH];    /* re-initialize the skin buffer before we start reloading skins */    skin_buffer_init();    enum screen_type screen = SCREEN_MAIN;    unsigned int i;#ifdef HAVE_LCD_BITMAP    skin_backdrop_init();    skin_font_init();#endif#if CONFIG_TUNER    fms_skin_init();#endif    for (i=0; i<ARRAYLEN(skins); i++)    {#ifdef HAVE_REMOTE_LCD        screen = skins[i].suffix[0] == 'r' ? SCREEN_REMOTE : SCREEN_MAIN;#endif        CHART2(">skin load ", skins[i].suffix);        if (skins[i].setting[0] && skins[i].setting[0] != '-')        {            snprintf(buf, sizeof buf, WPS_DIR "/%s.%s",                     skins[i].setting, skins[i].suffix);            skins[i].loadfunc(screen, buf, true);        }        else        {            skins[i].loadfunc(screen, NULL, true);        }        CHART2("<skin load ", skins[i].suffix);    }    viewportmanager_theme_changed(THEME_STATUSBAR);#if LCD_DEPTH > 1 || defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1    FOR_NB_SCREENS(i)        screens[i].backdrop_show(sb_get_backdrop(i));#endif}

void mspClientProcess(void){    static uint8_t index = 0;    bool busy = mspPorts[1].commandSenderFn != NULL;    if (busy) {        return;    }    commandToSend = commandsToSend[index];    mspPorts[1].commandSenderFn = mspRequestFCSimpleCommandSender;    index++;    if (index >= ARRAYLEN(commandsToSend)) {        index = 0;    }    //    // handle timeout of received data.    //    uint32_t now = micros();    mspClientStatus.timeoutOccured = (cmp32(now, mspClientStatus.lastReplyAt) >= MSP_CLIENT_TIMEOUT_INTERVAL);}

/* Buffer a block of sound data for the given sound.  Return the number of * frames buffered, or a RageSoundReader return code. */int RageSoundDriver::GetDataForSound( Sound &s ){	sound_block *p[2];	unsigned psize[2];	s.m_Buffer.get_write_pointers( p, psize );	/* If we have no open buffer slot, we have a buffer overflow. */	ASSERT( psize[0] > 0 );	sound_block *pBlock = p[0];	int size = ARRAYLEN(pBlock->m_Buffer)/channels;	int iRet = s.m_pSound->GetDataToPlay( pBlock->m_Buffer, size, pBlock->m_iPosition, pBlock->m_FramesInBuffer );	if( iRet > 0 )	{		pBlock->m_BufferNext = pBlock->m_Buffer;		s.m_Buffer.advance_write_pointer( 1 );	}//	LOG->Trace( "incr fr wr %i (state %i) (%p)",//		(int) pBlock->m_FramesInBuffer, s.m_State, s.m_pSound );	return iRet;}

bool dbg_hw_info_dma(void){    lcd_setfont(FONT_SYSFIXED);        while(1)    {        int button = get_action(CONTEXT_STD, HZ / 25);        switch(button)        {            case ACTION_STD_NEXT:            case ACTION_STD_PREV:            case ACTION_STD_OK:            case ACTION_STD_MENU:                lcd_setfont(FONT_UI);                return true;            case ACTION_STD_CANCEL:                lcd_setfont(FONT_UI);                return false;        }                lcd_clear_display();        lcd_putsf(0, 0, "S C name bar      apb ahb una");        for(unsigned i = 0; i < ARRAYLEN(dbg_channels); i++)        {            struct imx233_dma_info_t info = imx233_dma_get_info(dbg_channels[i].chan, DMA_INFO_ALL);            lcd_putsf(0, i + 1, "%c %c %4s %8x %3x %3x %3x",                info.gated ? 'g' : info.freezed ? 'f' : ' ',                !info.int_enabled ? '-' : info.int_error ? 'e' : info.int_cmdcomplt ? 'c' : ' ',                dbg_channels[i].name, info.bar, info.apb_bytes, info.ahb_bytes,                info.nr_unaligned);        }                lcd_update();        yield();    }}

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C++ ARRAYLENGTH函数代码示例
C++ ARRAYCOUNT函数代码示例