C/C++ Users Group Library 1996 July/C-C++ Users Group Library July 1996.iso/vol_100/163_01/isdigit.c

Text File | 1988-01-30 | 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;
  }