Malloc the struct

This is a discussion on Malloc the struct within the C Programming forums, part of the General Programming Boards category; Well I have the struct here, an array of structs actually. I have to malloc it, and then free. How ...

  1. #1
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    Malloc the struct

    Well I have the struct here, an array of structs actually. I have to malloc it, and then free. How is it done, in codes? Thanks for any help. I'm driven crazy for days but I can't do it.

    Code:
     struct Student
         {
         char id[20], grade;
         int *tests;
         int total;
         };
    
         struct Student Stud[81];

  2. #2
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    Put the struct prototype, before main() (global space), and include the header file, stdlib.h.

    Do you want to malloc the int's for tests?
    Code:
    Stud[i].test = malloc(Number of Test int's you want * sizeof(int));
    should do it.

  3. #3
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    You may want to study this link for DYNAMIC MEMORY ALLOCATION .

    Jim

  4. #4
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    Quote Originally Posted by jimblumberg View Post
    You may want to study this link for DYNAMIC MEMORY ALLOCATION .

    Jim
    Thanks a lot! The link helped a lot.

  5. #5
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    Quote Originally Posted by Adak View Post
    Put the struct prototype, before main() (global space), and include the header file, stdlib.h.

    Do you want to malloc the int's for tests?
    Code:
    Stud[i].test = malloc(Number of Test int's you want * sizeof(int));
    should do it.
    Yes, I wanted to malloc them. Thanks for the code!

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