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How do I fix this?

Hi Can someone please help me figure out what I am doing wrong here? I am trying to write the code for a plasma pistol but I have an error that reads
Error 1 error C2228: left of '.pressTrigger' must have class/struct/union

I know it is because oldPistol is not a class or struct but how do I fix this without screwing up my whole program? Here is my code that has the problem:

Expand|Select|Wrap|Line Numbers
  1. Code:
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. class plasmaPistolClass
  6. {
  7. private:  
  8.         int ammo;                       
  9.         int rateOfFire;        
  10.         int destructivePower;   
  11. public:  
  12.         bool safetyOn;  
  13.         int maxAmmo;   
  14.         void pressTrigger(void);  
  15.         void load(int nmbrOfBolts);  
  16.         void setDestructivePower(int powerSetting);  
  17.         int showDestructivePower(void);  
  18.         void setRateOfFire(int boltsPerTriggerPress);  
  19.         int showRateOfFire(void);   
  20.         int ammoRemaining(void);  
  21.  
  22.  
  23.       plasmaPistolClass();  
  24.  
  25.       plasmaPistolClass(int,int);
  26. };   
  27.  
  28. int main()
  29. {
  30.     plasmaPistolClass oldPistol();
  31.     plasmaPistolClass newPistol(7,75);
  32.     cout << "Firing Old pistol" << endl;
  33.     oldPistol.pressTrigger();   //ehis is where the error shows up at
  34.     system("pause");    
  35.     return 0;
  36. }
  37.  
Any help will be greatly appreciated.
Nov 28 '09 #1

✓ answered by Banfa

This

plasmaPistolClass oldPistol();

should be this

plasmaPistolClass oldPistol;

The way you have the compiler thinks you are declaring a function, oldPistol, returning plasmaPistolClass so oldPistol is a function not a variable.

4 1923
Banfa
9,065 Expert Mod 8TB
This

plasmaPistolClass oldPistol();

should be this

plasmaPistolClass oldPistol;

The way you have the compiler thinks you are declaring a function, oldPistol, returning plasmaPistolClass so oldPistol is a function not a variable.
Nov 28 '09 #2
I fixed that part just to generate a new problem

int main()
{
plasmaPistolClass oldPistol;
plasmaPistolClass newPistol(7,75);
cout << "Firing Old pistol" << endl;
oldPistol.pressTrigger;
system("pause");
return 0;
The error is this:
error C3867: 'plasmaPistolClass::pressTrigger': function call missing argument list; use '&plasmaPistolClass::pressTrigger' to create a pointer to member

but we haven't learned anything about pointers yet so I am not sure what to do to fix this,
Nov 28 '09 #3
Banfa
9,065 Expert Mod 8TB
lol, I said

This

plasmaPistolClass oldPistol();

should be this

plasmaPistolClass oldPistol;
not

This

oldPistol.pressTrigger();

should be this

oldPistol.pressTrigger;
The first is instantiation and gets confused as a function declaration with the () the second is a function call and is not valid without the ().

Only change the thing I said to change.
Nov 28 '09 #4
Thank you, Banfa. That corrected the problem so that it will compile now but I have a lot more deeper problems than that. The output is way off. Actually most of it does not even show when I run it. So back to the drawing board I go.
Your help is extremely appreciated.
Nov 28 '09 #5

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