我创建了下面的类,它有一个通过引用传入的对象,并以下面的方式实现。
Diablo_Serial_4DLib Display(&DisplaySerial);
ZenDisplay ui(Display);
class ZenDisplay
{
public:
ZenDisplay(Diablo_Serial_4DLib &display);
void setup();
private:
Diablo_Serial_4DLib* _display;
};
构造函数是直来直去的,按预期工作,到目前为止没有问题。
// Constructor /////////////////////////////////////////////////////////////////
ZenDisplay::ZenDisplay(Diablo_Serial_4DLib &display)
{
_display = &display;
}
我想示例化ZenSpeakerGroup类并将相同的引用传递到它的构造函数中
一个三个三个一个
我把原来的工人阶级修改成了
class ZenDisplay
{
public:
ZenDisplay(Diablo_Serial_4DLib &display);
void setup();
private:
Diablo_Serial_4DLib* _display;
ZenSpeakerGroup _speakerGroup;
};
// Constructor /////////////////////////////////////////////////////////////////
ZenDisplay::ZenDisplay(Diablo_Serial_4DLib &display) : _speakerGroup(&display)
{
_display = &display;
}
现在我得到了下面的错误,并不是100%确定我做错了什么。
Arduino: 1.8.16 (Mac OS X), Board: "DOIT ESP32 DEVKIT V1, 80MHz, 921600, None"
/Users/xxx/Documents/Arduino/libraries/ZenOne/ZenDisplay.cpp: In constructor 'ZenDisplay::ZenDisplay(Diablo_Serial_4DLib&)':
/Users/xxx/Documents/Arduino/libraries/ZenOne/ZenDisplay.cpp:14:78: error: no matching function for call to 'ZenSpeakerGroup::ZenSpeakerGroup(Diablo_Serial_4DLib*)'
ZenDisplay::ZenDisplay(Diablo_Serial_4DLib &display) : _speakerGroup(&display)
^
In file included from /Users/xxx/Documents/Arduino/libraries/ZenOne/ZenDisplay.h:14,
from /Users/xxx/Documents/Arduino/libraries/ZenOne/ZenDisplay.cpp:9:
/Users/xxx/Documents/Arduino/libraries/ZenOne/ZenSpeakerGroup.h:18:5: note: candidate: 'ZenSpeakerGroup::ZenSpeakerGroup(Diablo_Serial_4DLib&)'
ZenSpeakerGroup(Diablo_Serial_4DLib &display);
^~~~~~~~~~~~~~~
/Users/xxx/Documents/Arduino/libraries/ZenOne/ZenSpeakerGroup.h:18:5: note: no known conversion for argument 1 from 'Diablo_Serial_4DLib*' to 'Diablo_Serial_4DLib&'
/Users/xxx/Documents/Arduino/libraries/ZenOne/ZenSpeakerGroup.h:15:7: note: candidate: 'constexpr ZenSpeakerGroup::ZenSpeakerGroup(const ZenSpeakerGroup&)'
class ZenSpeakerGroup
^~~~~~~~~~~~~~~
/Users/xxx/Documents/Arduino/libraries/ZenOne/ZenSpeakerGroup.h:15:7: note: no known conversion for argument 1 from 'Diablo_Serial_4DLib*' to 'const ZenSpeakerGroup&'
/Users/xxx/Documents/Arduino/libraries/ZenOne/ZenSpeakerGroup.h:15:7: note: candidate: 'constexpr ZenSpeakerGroup::ZenSpeakerGroup(ZenSpeakerGroup&&)'
/Users/xxx/Documents/Arduino/libraries/ZenOne/ZenSpeakerGroup.h:15:7: note: no known conversion for argument 1 from 'Diablo_Serial_4DLib*' to 'ZenSpeakerGroup&&'
exit status 1
Error compiling for board DOIT ESP32 DEVKIT V1.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
我也尝试了以下方法,但没有成功。_speakerGroup = new ZenSpeakerGroup(&display)
我将非常感谢在这方面的一些帮助。
2条答案
按热度按时间0g0grzrc1#
这是将显示器引用传递给ZenSpeakerGroup的正确方法
wljmcqd82#
我也犯了这个错误,这是个打字错误
确保当你要初始化一个引用时将它定义为一个引用
现在初始化引用