Non Class Type Error

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Request For Member Which Is Of Non-class Type Arduino

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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:(.text._ZN7Key

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Undefined Reference To Class

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 error: request for member … which is of non-class type http://stackoverflow.com/questions/16364116/request-for-member-which-is-of-non-class-type up vote 1 down vote favorite 1 I realize the error is coming from using vectors in a custom class, but I have been struggling how to fix them. How do I call vector methods when its part of the class object? I'm just learning c++ so bare with me if there are some basic mistakes. Thanks for any help! These are the errors I am getting: Word.cpp: http://stackoverflow.com/questions/18806285/error-request-for-member-which-is-of-non-class-type In member function ‘void Word::addPosition(int)’: Word.cpp:20: error: request for member ‘push_back’ in ‘((Word*)this)->Word::positions’, which is of non-class type ‘std::vector >*’ Word.cpp: In member function ‘int Word::getPosition(int)’: Word.cpp:26: error: request for member ‘size’ in ‘((Word*)this)->Word::positions’, which is of non-class type ‘std::vector >*’ Word.cpp:27: error: request for member ‘size’ in ‘((Word*)this)->Word::positions’, which is of non-class type ‘std::vector >*’ Word.cpp:29: error: cannot convert ‘std::vector >’ to ‘int’ in return Header #pragma once #include #include class Word { public: Word(); ~Word(); void setWord(std::string); void addPosition(int); std::string getWord(); int getPosition(int); private: std::string word; std::vector *positions; }; Implementation #include "Word.h" #include #include Word::Word() { this->word = ""; this->positions = new std::vector(5); } void Word::setWord(std::string s) { this->word = s; } void Word::addPosition(int i) { this->positions.push_back(i); } std::string Word::getWord() { return this->word; } int Word::getPosition(int i) { if (i < this->positions.size() && i > 0) { for (int j = 0; j < this->positions.size(); i++) { if (i == j) { return positions[j]; } } } return -1; } edit: Is this a better way to set up the class? header: #pragma once #include #include class Word { public: Word(); ~Word(); void setWord(std::string); void addPosition(int); std::string getWord(); int getPositio

> Programming Questions > "Request for member ' ' in ' ', which is of non class type ' '" Print Go Down Pages: [1] Topic: "Request for member ' http://forum.arduino.cc/index.php?topic=117167.0 ' in ' ', which is of non class type ' '"(Read 5519 http://www.cplusplus.com/forum/beginner/72405/ times) previous topic - next topic fuzzball27 Full Member Posts: 104 Karma: 0[add] Indubitably "Request for member ' ' in ' ', which is of non class type ' '" Aug 04, 2012, 12:13 am You know what the error (title) means. I'm sure you've probably run across it too... If so, request for I'd appreciate some help! I've been coming close to banging my head against the table for the last hour or so trying to figure out why I'm getting this error. Again. I'd really appreciate some help figuring out why I'm getting this error: "request for member 'measureIMU/readIMU' in 'vector', which is of non-class type 'IMU () ()'".ino:Code: [Select]
#include

//Macros
#define X 0

IMU vector();

void setup()
{
Serial.begin(9600);
}

void loop()
{
vector.measureIMU();
Serial.print(vector.readIMU(X));
Serial.println();
}.h:Code: [Select]#ifndef IMU_H
#define IMU_H
#include "Arduino.h"

class IMU
{
public:
IMU();
void measureIMU();
byte readIMU(byte axis);
private:
...
};

#endif.cpp:Code: [Select]#include
#include "IMU.h"

...

//Initializer
IMU::IMU()
{
init();
...
}

byte IMU::readIMU(byte axis)
{
...
}

void IMU::measureIMU()
{
...
}
... fuzzball27 >>--> Nick Gammon Global Moderator Brattain Member Posts: 27,641 Karma: 1251[add] Lua rocks! Gammon Software Solutions Re: "Request for member ' ' in ' ', which is of non class type ' '" #1 Aug 04, 2012, 12:19 am Code: [Select]IMU vector();
Lose the brackets. Please post technical questions on the forum, not by personal message. Thanks!More info: http://www.gammon.com.au/electronics fuzzball27 Full Member Posts: 104 Karma: 0[add] Indubitably Re: "Request for member ' ' in ' ', which is of non class type ' '" #2 Aug 04, 2012, 01:15 am Ohhh right! Hahahahaha thanks! fuzzball27 >>--> Print Go Up Pages: [1] Th

is of non-class type ‘int [8][8]" My classes are there: class Display { private: bool display[8][8]; public: // Costruttore Display(); // Distruttore ~Display(); // Metodi void 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) { 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, 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