Thread: C programming using gcc compiler

Dear all,

I am trying to do a program using gcc compiler to reverse a string input.

I am stuck at the for loop which I think there is some mistake there. I only manage to reverse two of the letters only.

Kindly advise.

Below is part of my code:

Code:

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

#define size 128

int main(void)
{
    char line[size];
    printf("Enter line:");
   fgets(line, size, stdin);

    int n, i;
    n = strlen(line);
    
   for (i = 0; i > n; ++i)
    {
        line[i] = line[n-1-i];
     }

    printf("Your reverse line is %s\n, line);


   exit(0);

 }

Would really appreciate someone to point out where I have gone wrong.

Thanks.

Somehow i got what you meant already.

Code:

for (i = 0; i < n; ++i)

Only then the condition will be true.

For the for loop, i should use a separate count to differentiate between the length of the string and count. So that it won't affect the for loop condition.
and i should not do my code this way.

Code:

line[i] = line[n-1-i]

If my i = 0, i will end up having my array grabbing null into the array
which i am suppose to grab my character instead.

So far, am I right to say this way??

The first time i run,

Code:

Enter your line:testy
your reverse is: 
ytty
Application Exited.

second try..

i got it already.

Code:

Build Success
------------------------------
Enter your line:testytesty
your reverse is: ytsetytset
Application Exited.

thanks guys..