How can you swap the order of strings in C language?

To reverse the order of a string, you can use a loop to output the characters in reverse. Below is an example code:

#include <stdio.h>
#include <string.h>

void reverseString(char str[]) {
    int length = strlen(str);
    char temp;
    
    for (int i = 0; i < length/2; i++) {
        temp = str[i];
        str[i] = str[length-1-i];
        str[length-1-i] = temp;
    }
}

int main() {
    char str[] = "Hello, World!";
    
    printf("Original string: %s\n", str);
    reverseString(str);
    printf("Reversed string: %s\n", str);
    
    return 0;
}

This code will reverse the order of the string “Hello, World!” and output “!dlroW ,olleH”. By swapping the position of each character through a loop, string reversal can be achieved.