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Copy a file: how to use feof


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

int main(int argc, char *argv[])
{
  FILE *in, *out;
  char ch;

  if(argc!=3) {
    printf("You forgot to enter a filename.\n");
    exit(1);
  }

  if((in=fopen(argv[1], "rb"))==NULL) {
    printf("Cannot open source file.\n");
    exit(1);
  }
  if((out=fopen(argv[2], "wb")) == NULL) {
    printf("Cannot open destination file.\n");
    exit(1);
  }

  /* This code actually copies the file. */
  while(!feof(in)) {
    ch = getc(in);
    if(!feof(in)) putc(ch, out);
  }

  fclose(in);
  fclose(out);

  return 0;
}








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3.Check if End Of File has been reached: how to use feof