Structure holds functions

This is a discussion on Structure holds functions within the C Programming forums, part of the General Programming Boards category; hi i am new to c programming , as i learn structure can hold only variable, other structure ; but ...

  1. #1
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    Structure holds functions

    hi

    i am new to c programming , as i learn structure can hold
    only variable, other structure ; but it is possible if i put function pointer inside structure then call it.. like bellow....

    Code:
    void testfunc()
    {
          
    }
    
    struct test
    {
           void (*testfunc)();
    
    };
    
    struct test *t1;
    
    t1->testfunc();  // this is how i want to call
    is it possible with c compiler?

    thanks
    atik

  2. #2
    Code Goddess Prelude's Avatar
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    9,796
    >is it possible with c compiler?
    In the time it took to type that post, you could have fired up any compiler of your choice and tested it. But yes, it's possible.
    My best code is written with the delete key.

  3. #3
    Even death may die... Dante Shamest's Avatar
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    Quote Originally Posted by atik
    but it is possible if i put function pointer inside structure then call it..
    It's possible. Here's an example.

    Code:
    #include <stdio.h>
    #include <stdlib.h>
    
    void bar() {
      printf( "hello world!\n" ); 
    }
    
    typedef struct Foo {
      void (*func) ();
    } Foo ;
    
    int main()
    {
      Foo foo ;
      foo.func = bar ;
      foo.func() ;
      getchar();	
      return 0;
    }

  4. #4
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    Quote Originally Posted by Prelude
    But yes, it's possible.
    thanks for reply...

    Can you pls give me an example that will call the function like this..

    Code:
    varName->functionName();
    and will compile without error..


    thanks again
    atik

  5. #5
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    the code was posted while i was typing ..

    Thanks

    atik

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