home *** CD-ROM | disk | FTP | other *** search
/ ftp.barnyard.co.uk / 2015.02.ftp.barnyard.co.uk.tar / ftp.barnyard.co.uk / cpm / walnut-creek-CDROM / ENTERPRS / CPM / UTILS / S / SMC21LIB.LZH / ISALNUM.C < prev    next >
Text File  |  2000-06-30  |  256b  |  12 lines
  1.  
  2. /*
  3. ** return "true" if c is alphanumeric
  4. */
  5. isalnum(c) int c; {
  6.   return ((c<='z' && c>='a') ||
  7.           (c<='Z' && c>='A') ||
  8.           (c<='9' && c>='0'));
  9.   }
  10.  
  11.  
  12.