new operation

This is a discussion on new operation within the C Programming forums, part of the General Programming Boards category; What is the equivalent of new in C?. I apologize for these questions. I am not that familiar with linked ...

  1. #1
    Registered User
    Join Date
    Jul 2005

    new operation

    What is the equivalent of new in C?. I apologize for these questions. I am not that familiar with linked lists.

  2. #2
    Registered User
    Join Date
    Oct 2001
    malloc() is the equivalent of new , and free() is the equivalent of delete . For example in C:
    head = malloc( sizeof(*head) );
    And there's also calloc().

  3. #3
    Frequently Quite Prolix dwks's Avatar
    Join Date
    Apr 2005
    calloc() is meant for allocating arrays. It also sets the allocated memory to zero, while malloc() doesn't.

    #include <stdio.h>
    #include <stdlib.h>
    char *str = malloc(sizeof(char) * 80);
    strncpy(str, argv[0], 80);

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  4. #4
    Gawking at stupidity
    Join Date
    Jul 2004
    Oregon, USA
    Be careful with that code. If strlen(argv[0]) is greater than 80 then str will end up without a terminating '\0'.
    If you understand what you're doing, you're not learning anything.

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