variable or field declared void

Question

I have a function called   void initializeJSP string Experiment    And in my MyJSP h file I have   2  void initializeJSP string Experiment     And when I compile I get this error      MyJSP h 2 error  variable or field initializeJSP declared void   Where is the problem

User · Accepted Answer

It for example happens in this case here:

void initializeJSP(unknownType Experiment);

Try using std::string instead of just string (and include the <string> header). C++ Standard library classes are within the namespace std::.

User · Answer

This is not actually a problem with the function being  quot void quot   but a problem with the function parameters   I think it s just g   giving an unhelpful error message  EDIT  As in the accepted answer  the fix is to use std  string instead of just string

User · Answer

This is not actually a problem with the function being  quot void quot   but a problem with the function parameters   I think it s just g   giving an unhelpful error message  EDIT  As in the accepted answer  the fix is to use std  string instead of just string

User · Answer

Other answers have given very accurate responses and I am not completely sure what exactly was your problem if it was just due to unknown type in your program then you would have gotten many more clear cut errors along with the one you mentioned  but to add on further information this error is also raised if we add the function type as void while calling the function as you can see further below    include lt iostream gt   include lt vector gt   include lt utility gt   include lt map gt  using namespace std  void fun int x   main        int q 9     void fun q     line no 10   void fun int x        if  x  9          cout lt  lt  yes       else         cout lt  lt  no       Error    C  Users ACER Documents C   programs exp1 cpp 10 error  variable or field  fun  declared void        Build failed  1 error s   0 warning s   0 minute s   0 second s          So as we can see from this example this reason can also result in  variable or field declared void  error

User · Answer

The thing is that  when you call a function you should not write the type of the function  that means you should call the funnction just like   initializeJSP Experiment

User · Answer

The thing is that  when you call a function you should not write the type of the function  that means you should call the funnction just like   initializeJSP Experiment

User · Answer

Did you put void while calling your function   For example   void something int x       logic      int main            void   something         return 0       If so  you should delete the last void

User · Answer

Did you put void while calling your function   For example   void something int x       logic      int main            void   something         return 0       If so  you should delete the last void

User · Answer

Other answers have given very accurate responses and I am not completely sure what exactly was your problem if it was just due to unknown type in your program then you would have gotten many more clear cut errors along with the one you mentioned  but to add on further information this error is also raised if we add the function type as void while calling the function as you can see further below    include lt iostream gt   include lt vector gt   include lt utility gt   include lt map gt  using namespace std  void fun int x   main        int q 9     void fun q     line no 10   void fun int x        if  x  9          cout lt  lt  yes       else         cout lt  lt  no       Error    C  Users ACER Documents C   programs exp1 cpp 10 error  variable or field  fun  declared void        Build failed  1 error s   0 warning s   0 minute s   0 second s          So as we can see from this example this reason can also result in  variable or field declared void  error

[c++] variable or field declared void

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