C/C++ Users Group Library 1996 July/C-C++ Users Group Library July 1996.iso/vol_200/223_01/dtoi.c

C/C++ Source or Header | 1980-01-01 | 640 b | 15 lines

#define NOCCARGC  /* no argument count passing */
#include stdio.h
/*
** dtoi -- convert signed decimal string to integer nbr
**         returns field length, else ERR on error
*/
  static int len, s;

dtoi(decstr, nbr)  char *decstr;  int *nbr;  {
  if((*decstr)=='-') {s=1; ++decstr;} else s=0;
  if((len=utoi(decstr, nbr))<0) return ERR;
  if(*nbr<0) return ERR;
  if(s) {*nbr = -*nbr; return ++len;} else return len;
  }