I have an array in C, let's suppose it's
**arr = malloc(100 * sizeof(char*));
through some function, I populate this array in such a way that it ends up being
arr = {"first", "second", "third", "fourth", ... "tenth"};
Now, if I want to populate it anew, so that it's
arr = {"1st", "2nd", "3rd"}; //Desired outcome
it instead is shown as
arr = {"1st", "2nd", "3rd", "fourth", "fifth", ... "tenth"}; //Actual outcome
I'm certain my code is wrong, and my function for populating it from empty is fine, but I just want to find a way to wipe it. I tried free(), but I either used it wrong or that's not what I should be using.
Do any of you have a function that can not just set a string to "\0", but completely eradicate it?
To all that commented and answered, thank you.
What I was doing was using text files, strtok, and strdup to read words from a file into a char double pointer. I don't want any more than 5000 words stored in the "array", even if my file is 5001+ words.
I did this. I successfully populated the memory with the strings from the file. But if I changed my mind and tried to populate the memory with a smaller file (~30 words), it would change the first 30 and leave the remaining 4970 as they were, when I wanted them not to exist.
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