c++ reverse

Sure! If you want to reverse a string in C, you can use the following code:

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

void reverseString(char* str) {
    int length = strlen(str);
    int start = 0;
    int end = length - 1;
    
    while (start < end) {
        char temp = str[start];
        str[start] = str[end];
        str[end] = temp;
        
        start++;
        end--;
    }
}

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

This code defines a function `reverseString` that takes a character array (`str`) as input and reverses the string in-place. The `main` function demonstrates how to use this function by reversing the string "Hello, World!" and printing the result.