/* echonospaces.c 
 *   Neal Nelson 2009.10.02
 *
 * Echo lines with all spaces removed.
 * Overwrite the buffer provided by the caller.
 *
 */
#include <stdio.h>

#define MAXLINE 80

main()
{ char buf[MAXLINE];

  while (fgets(buf, MAXLINE, stdin) != NULL )
  { filter(buf,' ');
    printf ("%s\n", buf);
  }
}

/* filter out the character c from the buffer and squish */
filter(char *buf, char c)
{ char* p;

  for (p = buf; *p != '\0'; p++)
  { if ( *p != c )
    { *buf++ = *p;
    }
  }
  *buf = '\0';
}