Power-Programmierung/CD2.mdf/c/compiler/small_c/byte_sc/dtoi.c

C/C++ Source or Header | 1987-10-04 | 512 b | 14 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
*/
dtoi(decstr, nbr)  char *decstr;  int *nbr;  {
  int len, s;
  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;
  }