Problem with my reverse function and its output!
Hey as some of you might have read on my previous thread, i was working on a little program. I got it working now, however the way its throwing out its output is not the way its supposed to be.
This file will be essentially the same as the original file, but will have all characters on all lines the reverse of the original. For example:
The original file has:
Jack Spratt
could eat no fat.
The output file will look like:
ttartpS kcaJ
.taf on tae dluoc
But my program is throwing its output like this in one line:
ttartpS kcaJ.taf on tae dluoc
Can anyone assist me in fixing this, so it prints it in the correct format: Here are the codes:
Code:
#include <stdio.h>
#include <string.h>
#include <ctype.h>
// Our function declaration saying it takes one string pointer and returns one string pointer.
char * flipstring(char *stringtoflip);
int main() {
// Strings to hold our lines (forward and backward)
char string[256];
char flipped[256];
// Our file pointers (one in and one out)
FILE * infile;
FILE * outfile;
// Open files to valid txt files
infile = fopen("input.txt","r");
outfile = fopen("output.txt","w");
// Loop through the input file reading each line up to 256 chars
while (fgets(string,256,infile) != NULL) {
printf("The value read in is: %s\n", string);
// Flip the string and copy it to our "flipped" string
strcpy(flipped,flipstring(string));
// Write "flipped" to output
printf("The value written is: %s\n",flipped);
fputs(flipped,outfile);}
// Close files
fclose(infile);
fclose(outfile);
return 0;
}
// Flips strings by taking incoming string, loop in reverse
// and write each char to reverse string. Return reverse string.
char * flipstring(char *stringtoflip) {
static char reverse[256];
int j = 0;
int i= strlen(stringtoflip)-1;
// Loop through each char of our string in reverse
for( i ;i>=0; i--)
{
// If it is a newline, just ignore for now.
if (stringtoflip[i] != '\n') {
reverse[j]=stringtoflip[i];
j++;
}
}
// Terminate the new reverse string.
reverse[j] = '\0';
// Return reverse string back to main()
return reverse;
}
