error: Type mismatch in redecleration on 'throw_cards'

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error: Type mismatch in redecleration on 'throw_cards'

 
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  #1
Jan 7th, 2008
i have no idea whats wrong with this function =\
C Syntax (Toggle Plain Text) 
  1.    void throw_cards(card h_cards[])
  2.    {
  3.      char f;
  4.      cleardevice();
  5.      while(f!='f')
  6.       {
  7.        printf("from 0 to 6 pick the cards you want to thorw\n");
  8.        printf("to finish hit 'f'");
  9.        f=getch();
  10.  
  11. 	 printf("trowing card %c",f);
  12.  
  13.       }
  14.    }

i get the error: Type mismatch in redecleration on 'throw_cards'
and it shows me the 2ND line
C Syntax (Toggle Plain Text) 
  1. {
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Re: error: Type mismatch in redecleration on 'throw_cards'

 
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  #2
Jan 7th, 2008
>error: Type mismatch in redecleration on 'throw_cards'
Post the prototype as well.
In case you were wondering, yes, I do hate you.
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Re: error: Type mismatch in redecleration on 'throw_cards'

 
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  #3
Jan 7th, 2008 
char f;
f=getch();
getch returns an int. Therefore, f needs to be of type int.
"If it moves, tax it. If it keeps moving, regulate it, and if it stops moving, subsidize it" - Ronald Reagan stating how a liberal's mind works.
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Re: error: Type mismatch in redecleration on 'throw_cards'

 
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  #4
Jan 7th, 2008
Trying to call it before you prototype it will cause the compiler to declare it implicitly.
This implicit declaration will almost certainly conflict with the actual definition you provide later on.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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If your code lacks code tags, you will be IGNORED
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Re: error: Type mismatch in redecleration on 'throw_cards'

 
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  #5
Jan 7th, 2008
this function works
C Syntax (Toggle Plain Text) 
  1.    void check()
  2.    {
  3.      char e;
  4.      e=getch();
  5.      if(e=='e')
  6. 	exit(1);
  7.      else
  8.      if(e=='s')
  9. 	start();
  10.      else
  11.      {
  12.       cleardevice();
  13.       printf("ERROR:%c unknown\n\nPress\ns to Start game\na to About\ne to Exit",e);
  14.       check();
  15.      }
  16.    }

so i guess i can put
C Syntax (Toggle Plain Text) 
  1. char f;
  2. f=getch();

and Narue what the prototype????

and i have no idea that salem means =\
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Re: error: Type mismatch in redecleration on 'throw_cards'

 
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  #6
Jan 7th, 2008
>so i guess i can put
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char f;
f=getch();
I quote those to point out what I was referring to. In fact, you should change every variable that is going to hold the return of getch() to type int.
e.g
C Syntax (Toggle Plain Text) 
  1. int f;
  2. f = getch();
Now you can use that one. That's the proper way.

>and Narue what the prototype????

If you code this function after the main function:

C Syntax (Toggle Plain Text) 
  1.    void throw_cards(card h_cards[])
  2.    {
  3.      char f;
  4.      cleardevice();
  5.      while(f!='f')
  6.       {
  7.        printf("from 0 to 6 pick the cards you want to thorw\n");
  8.        printf("to finish hit 'f'");
  9.        f=getch();
  10.  
  11. 	 printf("trowing card %c",f);
  12.  
  13.       }
  14.    }
The prototype would be a signature of this function placed somewhere before the call of it.
This signature would be:
void throw_cards(card h_cards[]);
Basically you make a copy of the function header and add a ; at the end of it, and place it before being called in main or other function; that way the compiler knows what to expect at compilation time.

>and i have no idea that salem means =\
If you didn't know what a prototype was; of course you wouldn't understand what he's saying.
Last edited by Aia; Jan 7th, 2008 at 2:38 pm.
"If it moves, tax it. If it keeps moving, regulate it, and if it stops moving, subsidize it" - Ronald Reagan stating how a liberal's mind works.
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Re: error: Type mismatch in redecleration on 'throw_cards'

 
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  #7
Jan 7th, 2008
thanks alot Aia
really helped me
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