functions defined as a string

This is a discussion on functions defined as a string within the C Programming forums, part of the General Programming Boards category; I know that you can define a function as a "char *", but its been a couple of years, and ...

  1. #1
    Registered User
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    Nov 2001
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    3

    Question functions defined as a string

    I know that you can define a function as a "char *", but its been a couple of years, and I forget the specific syntax.

    I am calling a pair of C functions from a 4GL (an old IBM DB query language) program, passing four strings to the C function, and having the C function return a String.

    so far all I can think of is

    char *getGeo(char c_city[50])
    {
    }


    I've been using this anoying old language for a couple months, and it has robbed me of my C/C++ knowledge; it's a diabolic IBM scheme to rid the world of OO programming. Really, I swear it is.

  2. #2
    ATH0 quzah's Avatar
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    Is the question how to do it in C, or how to do it in 4GL?

    In C:
    Code:
    char *myfunction( char array[50], char *stringy )
    {
       return stringy; //valid
       return array; //valid
    }
    You can pass a "string" as an array, or as a character pointer.
    You can return a character pointer.

    Quzah.
    Hope is the first step on the road to disappointment.

  3. #3
    Sayeh
    Guest
    Well, you can't actually declare a function as _anything_... you are declaring what the function will return onto the stack.


    char *foo(void);


    easy enough...

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