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Request For Member Which Is Of Non-class Type 'char'

the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up request for member which is of non-class type up vote 5 down vote favorite 2 i got this error and i am c++ request for member which is of pointer type not able to solve by myself source.cpp:85:8: error: request for member ‘put_tag’ in ‘aux’, which is of non-class type ‘Keyword()’ source.cpp:86:8: error: request for member ‘put_site’ in ‘aux’, which is of non-class type ‘Keyword()’ make: *** [source.o] Error 1 the code which gives me this error is Keyword aux(); aux.put_tag(word); aux.put_site(site); I must mention that word and site are char * type Now, my Keyword class definition is this one: class Keyword{ private: std::string tag; Stack weblist; public: Keyword(); ~Keyword(); void put_tag(std::string word) { tag = word; } void put_site(std::string site) { weblist.push(site); } }; Thank you very much! Update By modifying Keyword aux(); aux.put_tag(word); aux.put_site(site); in Keyword aux; aux.put_tag(word); aux.put_site(site); i got this error: source.o: In function `Algorithm::indexSite(std::basic_string, std::allocator > const&)': source.cpp:(.text+0x2c6): undefined reference to `Keyword::Keyword()' source.cpp:(.text+0x369): undefined reference to `Keyword::~Keyword()' source.cpp:(.text+0x4a8): undefined reference to `Keyword::~Keyword()' source.o: In function `Keyword::put_site(std::basic_string, std::allocator >)': source.cpp:(.tex

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Request For Member In Something Not A Structure Or Union

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Undefined Reference To Class

Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a http://stackoverflow.com/questions/16364116/request-for-member-which-is-of-non-class-type minute: Sign up error: request for member '..' in '..' which is of non-class type up vote 235 down vote favorite 45 I have a class with two constructors, one that takes no arguments and one that takes one argument. Creating objects using the constructor that takes one argument works as expected. However, if I create objects using the constructor that takes http://stackoverflow.com/questions/877523/error-request-for-member-in-which-is-of-non-class-type/21713911 no arguments, I get an error. For instance, if I compile this code (using g++ 4.0.1)... class Foo { public: Foo() {}; Foo(int a) {}; void bar() {}; }; int main() { // this works... Foo foo1(1); foo1.bar(); // this does not... Foo foo2(); foo2.bar(); return 0; } ... I get the following error: nonclass.cpp: In function ‘int main(int, const char**)’: nonclass.cpp:17: error: request for member ‘bar’ in ‘foo2’, which is of non-class type ‘Foo ()()’ Why is this, and how do I make it work? c++ share|improve this question edited Jun 24 '14 at 5:42 user2864740 35.3k43880 asked May 18 '09 at 12:38 sarnesjo 1,50121016 related: stackoverflow.com/q/2318650/69537 –Meysam Aug 6 '12 at 6:24 add a comment| 4 Answers 4 active oldest votes up vote 372 down vote accepted Foo foo2(); change to Foo foo2; You get the error because compiler thinks of Foo foo2() as of function declaration with name 'foo2' and the return type 'Foo'. But in that case If we change to Foo foo2 , the compiler might show the error " call of overloaded ‘Foo()’ is am

is of non-class type ‘int [8][8]" My classes are there: class Display { private: bool http://www.cplusplus.com/forum/beginner/72405/ display[8][8]; public: // Costruttore Display(); // Distruttore ~Display(); // Metodi void http://arduino.stackexchange.com/questions/14576/request-for-member-is-non-class-type on(int x, int y); void off(int x, int y); void A(); }; And this: #include "Display.hh" Display::Display() { display[8][8]; for (int i=0; i<8; i++) { for (int j=0; j<8; j++) { display[i][j].off(i, j); } } } Display::~Display() {;} void Display::on(int x, int y) { request for display[x][y]=true; } void Display::off(int x, int y) { display[x][y]=false; } void Display::A() { int i,j; while (i==2 || i==5) { for (j=2; j<6; j++) { display.on(i, j); } } while (i==3 || i==4) { while (j==1 || j==4) { display.on(i, j); } } } Does anyone know where is the problem?? Last edited on Jun 2, request for member 2012 at 11:14pm UTC Jun 2, 2012 at 11:23pm UTC Peter87 (7792) display[8][8]; What are you trying to do on this line? Remember that indexing starts at zero so this is actually an out of bounds access. display[i][j].off(i, j); display[i][j] is a bool and have no member functions. Only classes can have member functions display.on(i, j); display is an array so it have no member functions. Jun 2, 2012 at 11:28pm UTC BlackSheep (423) Your class is called Display, the data member that you declared inside is called display. C++ is type sensitive, so you're trying to call the function "on" for "display" which is an array of 64 bools. Obviously this won't work. If you want to call a member function inside a class just use the function's name. Topic archived. No new replies allowed. C++ Information Tutorials Reference Articles Forum Forum BeginnersWindows ProgrammingUNIX/Linux ProgrammingGeneral C++ ProgrammingLoungeJobs Home page | Privacy policy© cplusplus.com, 2000-2016 - All rights reserved - v3.1Spotted an error? contact us

a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Arduino beta Questions Tags Users Badges Unanswered Ask Question _ Arduino Stack Exchange is a question and answer site for developers of open-source hardware and software that is compatible with Arduino. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Request for member is Non-class type up vote 0 down vote favorite Im getting this error: iotHook.ino: In function 'void setup()': iotHook:13: error: request for member 'begin' in 'esp', which is of non-class type 'Esp8266()' request for member 'begin' in 'esp', which is of non-class type 'Esp8266()' When I try to lunch my begin function of my class: class Esp8266 { public: Esp8266(); void begin(HardwareSerial *wifiCom, HardwareSerial *debugCom); ... private: HardwareSerial *wifiCom; HardwareSerial *debugCom; ... } Esp8266::Esp8266() { } void Esp8266::begin(HardwareSerial *wifiCom, HardwareSerial *debugCom) { this->wifiCom = wifiCom; this->debugCom = debugCom; this->debugCom->begin(115200); while (!this->debugCom) { ; } } EDIT 1: Updated image with new code Why is not picking up the begin function? c++ arduino-leonardo share|improve this question edited Aug 26 '15 at 22:51 asked Aug 26 '15 at 22:42 DomingoSL 1155 Remove the brackets from your constructor. –Majenko Aug 26 '15 at 22:44 @Majenko You mean from this Esp8266::Esp8266() {} to Esp8266::Esp8266() ??? –DomingoSL Aug 26 '15 at 22:47 No, what Ignacio says. The constructor in your sketch. –Majenko Aug 26 '15 at 22:52 add a comment| 3 Answers 3 active oldest votes up vote 2 down vote accepted Your current problem is that the USB Serial interface of the Leonardo isn't a hardware serial device, it's a CDC/

 

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