PC World Interactive 7/PC World Interactive 7.iso/program/cprog.EXE/CC_1.ZIP/ISDIGIT.C

Text File | 1988-02-01 | 384b | 8 lines

/*
** isdigit -- true if argument is valid ASCII digit
*/
isdigit(c) char c; {
  if(c >= '0' && c <= '9') return 1;
  else return 0;
  }