pointers and function calls inside a function

This is a discussion on pointers and function calls inside a function within the C Programming forums, part of the General Programming Boards category; Hello, I have a problem I am trying to figure out. I have a variable a in main. I am ...

  1. #1
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    Nov 2011
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    7

    pointers and function calls inside a function

    Hello, I have a problem I am trying to figure out. I have a variable a in main. I am passing the address of this variable to my function foo.
    Code:
    int main() {
    int a = 0;
    
    foo(&a);
    
    }
    
    void foo(int * a);
    in my function foo, I would like to do the same thing to this variable within my function foo, passing it to my function foo2.

    Code:
    void foo(int * a) {
       
       foo2(&(*a));
    
    }
    
    void foo2(int * a) {
    
       int x = *a;
    
    }
    would that be a proper call, parameter list and use of the variable in my function? thank you.

  2. #2
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    Aug 2010
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    Ontario Canada
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    9,547
    Actually since a inside foo is already a pointer you could just pass it along as foo2(a);

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