create a fake strdup

Asked Jun 09 '20 at 16:01

Active Jun 10 '20 at 07:25

Viewed 45 times

In this case I'm trying to understand the difference between this wrong strdup and the good one.

char *wrong_strdup(char *str) {
    char *dest;

    dest = str;
    return (dest);
}

edited Jun 10 '20 at 07:25

chqrlie

asked Jun 09 '20 at 16:01

Myno

3

All your function does is return its argument - i.e. it doesn't do anything. The real one does what it says it does. – Mat Jun 09 '20 at 16:03
3

Does this answer your question? https://stackoverflow.com/a/252802/4603670 – Barmak Shemirani Jun 09 '20 at 16:14
2

The real `strdup` is basically doing two things: allocates *new* memory for the duplicate and *copies* the string into this new memory. Your implementation does neither. – Eugene Sh. Jun 09 '20 at 16:22

0 Answers0