無效使用void表達式，怎麼樣？

該程序是一個嚴重編碼重擊鼴鼠遊戲在Arduino Uno上運行。

我IED是Arduino的IED版本1.6.12

是的，有很多更給它，但還是選擇了離開它，如果你想看到所有的代碼只問。

錯誤

Arduino: 1.6.12 (Windows 7), Board: "Arduino/Genuino Uno" 

C:\Users\Strings\Documents\Arduino\Too_Many_Moles\Too_Many_Moles.ino: In function 'void winOrLost()': 

Too_Many_Moles:146: error: invalid use of void expression 

     timelyCall(current_millis, toggleBuzer(), 1000); 

                ^

C:\Users\Strings\Documents\Arduino\Too_Many_Moles\Too_Many_Moles.ino: In function 'void loop()': 

Too_Many_Moles:191: error: invalid use of void expression 

    timelyCall(current_millis, popAMole(), time_interval); 

                 ^

exit status 1 
invalid use of void expression 

This report would have more information with 
"Show verbose output during compilation" 
option enabled in File -> Preferences.

Main.ino

const int buzer = A0, on_off_pin = A1; 

unsigned long current_millis; 
const int time_interval = 20; 
int currentMole = 0; 

int points = 0, lives = 3, level = 0, odds_of_pop_up = 6; 

mole moles[6] = { 
    mole(2, 8 ), 
    mole(3, 9 ), 
    mole(4, 10), 
    mole(5, 11), 
    mole(6, 12), 
    mole(7, 13) 
}; 
int number_of_mole = sizeof(moles)/sizeof(*moles); 

    void timelyCall(unsigned long currentMillis, void (&f)(), int ms) { 
    if (millis() - currentMillis > ms) { 
    f(); 
    currentMillis = millis(); 
    } 
} 
void popAMole() { 
    if (moles[currentMole].isReadyToPop()) { 
    moles[currentMole].popUp(odds_of_pop_up); 
    } 
    if (currentMole + 1 <= number_of_mole) { 
    currentMole = 0; 
    } 
    else { 
    currentMole++; 
    } 
}

mole.h

#ifndef mole_h 
#define mole_h 

#include "Arduino.h" 

class mole 
{ 
    public: 
    mole(int p_out, int p_in); 
    void resetMole(); 
    void popUp(int odds); 
    boolean moleGetHit(); 
    boolean isReadyToPop(); 

    void setUpTimer(int up_timer); 
    int getUpTimer(); 
    void decrementUpTimer(); 

    void setRecoveryTimer(int recovery_timer); 
    int getRecoveryTimer(); 
    void decrementRecoveryTimer(); 
    void addRecoveryTimer(int add_time); 

    boolean getSouldBeUp(); 

    int getOddsOfPopinh(); 
    void setOddsOfPopinh(int odds); 

    int getPinIn(); 


    private: 
    boolean _sould_be_up = false; 
    int _up_timer = 0; 
    int _recovery_timer = 0; 
    int _pin_out; 
    int _pin_in; 
    int _odds_of_poping = 10; 

}; 
#endif

mole.cpp

boolean mole::isReadyToPop() { 
    if (_recovery_timer == 0 && _sould_be_up = false) { 
    return true; 
    } 
    else { 
    return false; 
    } 
} 

void mole::popUp(int odds) { 
    if (rand() % odds + 1 == 1) { 
    digitalWrite(_pin_out, HIGH) 
    _sould_be_up = true; 
    } 
}

來源

2016-11-20 Invalidstr ingError 007Strings

你能提供錯誤發生的代碼嗎？你知道，例如'Too_Many_Moles：146：'。 – krzaq

哈哈，「Arduino IED」，會在某處引起一些紅旗。 –

您所呼叫的功能沒有通過地址timelyCall！

timelyCall(current_millis, popAMole(), time_interval); 
timelyCall(current_millis, toggleBuzer(), 1000);

應該是：

timelyCall(current_millis, popAMole, time_interval); 
timelyCall(current_millis, toggleBuzer, 1000);

通知上popAMole & toggleBuzer沒有括號。

來源

2016-11-20 05:20:25

無效使用void表達式，怎麼樣？

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