Reversing a string in c with recursion

Question

I have written code to reverse a string in c... it works fine but I can\'t return the reversed string in the main() function.

#include

        

Answer 1

Here is another way to reverse a string using recursion:

void reverseString(char* dest, char *src, int len) {
    if (src == NULL || len == 0)
        return;

    reverseString(dest, src + 1, len - 1);
    strncat_s(dest, len + 1, src, 1);
}

You can call like that:

#include 
#include 
#include 

#define STRING "Let's try this one."
#define SIZE 20

void main() {

    char* src = (char*)malloc(SIZE);
    char* dest = (char*)malloc(SIZE);

    strcpy_s(dest, SIZE, "");
    strcpy_s(src, SIZE, STRING);

    reverseString(dest, src, strlen(src));
    /* Do anything with dest. */
    // printf("%s\n", dest);

    free(src);
    free(dest);
}