Databases
StackOverflow2013
Postsdbo
POQt not recognising declared class
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POQt not recognising declared class
    primarykey
    data
    text
    <p>I use Qt 4.6.3 to write application for FriendlyARM. I am trying to pass 2 pointers (pointing to classes <code>axesParam1</code> and <code>mainWin</code>) to current class <code>localTime</code> but get these errors :</p> <pre> localtime.h:17: error: 'axesParam1' has not been declared localtime.h:18: error: 'mainWin' has not been declared localtime.h:26: error: ISO C++ forbids declaration of 'axesParam1' with no type localtime.h:26: error: expected ';' before '*' token localtime.h:27: error: ISO C++ forbids declaration of 'mainWin' with no type localtime.h:27: error: expected ';' before '*' token In file included from trackinputstatus.h:5, from trackinput.h:5, from mainwin.h:8, from geoparam.h:5, from axesparam3.h:5, from axesparam2.h:5, from axesparam1.h:5, from main.cpp:14: trackparamstatus.h:16: error: 'mainWin' has not been declared trackparamstatus.h:24: error: ISO C++ forbids declaration of 'mainWin' with no type trackparamstatus.h:24: error: expected ';' before '*' token main.cpp: In function 'int main(int, char**)': main.cpp:52: error: no matching function for call to 'localTime::setChildren(axesParam1*)' localtime.h:17: note: candidates are: void localTime::setChildren(int*) main.cpp:61: error: no matching function for call to 'localTime::setHome(mainWin*)' localtime.h:18: note: candidates are: void localTime::setHome(int*) main.cpp:62: error: no matching function for call to 'trackParamStatus::setHome(mainWin*)' trackparamstatus.h:16: note: candidates are: void trackParamStatus::setHome(int*) </pre> <p>I did not declared <code>setChildern</code> to accept <code>int*</code> as an argument so why is it insisting on <code>int*</code>?</p> <p>I have included the header file <code>localtime.h</code></p> <pre> #ifndef LOCALTIME_H #define LOCALTIME_H #include &ltQWidget> #include "axesparam1.h" #include "mainwin.h" namespace Ui { class localTime; } class localTime : public QWidget { Q_OBJECT public: localTime(QWidget *parent = 0); ~localTime(); void setChildren(axesParam1 *); void setHome(mainWin *); protected: void changeEvent(QEvent *e); private: Ui::localTime *ui; axesParam1 *P1; mainWin *w; }; #endif // LOCALTIME_H</pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USVedVals
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COAre you including `localtime.h` in `axesparam1.h` or in `mainwin.h`?
      singulars
      1. POQt not recognising declared class
      1. USthuga
    2. CO@thuga I am using it in main.cpp. I thought that the header files declared (hence the classes declared) were restricted to a single cpp file when the cpp file isn't extended/implemented. Or am I missing something?
      singulars
      1. POQt not recognising declared class
      1. USVedVals
    3. COIf `axesparam1.h` is including `localtime.h`, the declarations will be skipped due to the `#ifndef` line at the beginning of `.h` files. That is why I'm asking you to check if `axesparam1.h` is including `localtime.h`.
      singulars
      1. POQt not recognising declared class
      1. USthuga
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload