Thread: Re where and wherey

  1. #1
    zach
    Guest

    Re where and wherey

    Code:
    #include<stdio.h>
    #include<string.h>
    #include<conio.h>
    #include<windows.h>
    void locate (int x, int y) ;
    
    
    
    int main(void)
    {
    int response = 0;
    locate(5,5);puts("Your input: "); 
    
        while((_wherex != 20) && (_wherey != 5)) 
        //Operands of '!=' have incompatible types 'int __cdecl (*)(void)' and 'int'.
        {
            locate(20,5);
            scanf("%d",&response);
        }
    return 0;
    }
    
    void locate(int x, int y) 
        {
            COORD pos = {x, y};
            SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), pos);
        }
    re // I don't understand the errors.

  2. #2
    null pointer Structure's Avatar
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    '_wherex' undeclared
    '_wherey' undeclared
    where are these variables ?


  3. #3
    zach
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    Quote Originally Posted by Structure View Post
    where are these variables ?
    _wherex and _wherey are themselves not the problem and are not an essential part of my question. They are non-standard statements, made available by the IDE (Pelles C) and were tested to work okay.

  4. #4
    null pointer Structure's Avatar
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    //Operands of '!=' have incompatible types 'int __cdecl (*)(void)' and 'int'.
    When evaluating variables they should be of the same type.
    i.e:

    (float)1.0 != (int)1 is invalid.


  5. #5
    and the hat of int overfl Salem's Avatar
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    > while((_wherex != 20) && (_wherey != 5))
    The error message suggests it should be
    while((_wherex() != 20) && (_wherey() != 5))
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  6. #6
    zach
    Guest
    Quote Originally Posted by Salem View Post
    > while((_wherex != 20) && (_wherey != 5))
    The error message suggests it should be
    while((_wherex() != 20) && (_wherey() != 5))
    Yes - works fine! Thank you.

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