how do you sort rows of string on an array using qsort?

Question

The 'char str_array[n][len]', not the 'char *str_array[]' format.

Answer 1

CASOY
Hahaha yeah, I was kinda doubt it was anyways, no problem 👌

Then you mean to sort multiple rows of string?

Like this?
Andy
Bernard
Chloe
...

if so, I guess you need to edit the question to add more details 👍

(Edit)
For sorting rows of C string we can use `strcmp` in comparison function that is used by `qsort`.

https://code.sololearn.com/c2D6GFUg1VRg/?ref=app

Answer 2

This example uses static C String array. I'm not sure (haven't tested) using dynamic array yet.

https://code.sololearn.com/ccxP61geugHi/?ref=app

Answer 3

Thankyou for that Ipang however it's kind of not what I am looking for, Iwant only the string elements to be sorted not the character on each string. I appreciate the help. 😁

Answer 4

Ipang sorry about that. 😅
Thats a realy great help! thankyou so much.

Answer 5

//You define an 2 dimensional array of strings using #defines to set the dimensions

char myWords[MAX_WORD][MAX_WORD_LEN + 1];

//Keep track of how many word you add with an int

int word_count = 0;
// make sure to increase whenever you add a word!!! I did not put
// this bit in present sample

//You define a wrapper function that accepts void pointers and then itself
//calls strcmp to avoid GCC warning flags

inline int strcmp_void_wrapper(const void *p1, const void *p2)
{
return strcmp(p1, p2);
}

//You call qsort using your char 2D array, the actual word count, the max size of
// one word and your wrapper function.

qsort(myWords, word_count, MAX_WORD_LEN + 1, strcmp_void_wrapper);

I do not know how to make qsort collaborate with dynamic string array (char *[] instead of char[][]) because the size of each word could be different. If someone has an answer to that, I would greatly appreciate.