Thread: File opening

I have the task of opening a file with a c program and having all the letters be capatilized in the opened file. First issue is that when I attempt to open the file I don't actually see the file anywhere, how can I fix that? Second is where do I start for capitalizing all the letters contained in the opened file? Any help would be appreciated.

Code:

#include <stdlib.h>
#include <stdio.h>
int main ()
{
FILE *inFile;
char fileName[13];

printf("\nEnter a file name:");
gets(fileName);

inFile = fopen(fileName, "r");

if (inFile == NULL)
   {
   printf("\n The file cannot be opened.");
   printf("\nPlease check that the file currently exsists.");
   exit(1);
   }
printf("\nThe file has been successfully opened for reading:");

system ("PAUSE");
return 0;
}

my code that should allow me to read a file.

c program and having all the letters be capatilized in the opened file

here is a simple solution for this.

1. open the file in read mode
2. open another file called upper.txt in append mode
3. read a single char from the source file
4. use toupper function to convert to upper char
5. write the return value of toupper function to the upper.txt (ctype.h)
6. repeat step 3 until u reach EOF file (use fgetc)
7. Close both the file

ssharish2005