mdw@git.distorted.org.uk Git - qmail/blob - scan_nbblong.c

   1 #include "scan.h"
   2
   3 unsigned int scan_nbblong(s,n,base,bext,u)
   4 char *s; unsigned int n; unsigned int base; unsigned int bext; unsigned long *u;
   5 /* Note that n == 0 means scan forever. Hopefully this is a good choice. */
   6 {
   7   unsigned int pos; unsigned long result; unsigned long c;
   8   pos = 0; result = 0;
   9   while (((c = (unsigned long) (unsigned char) (s[pos] - '0')) < base)
  10        ||(((c = (unsigned long) (unsigned char) (s[pos] - 'a')) < bext)
  11         &&(c = c + base))
  12        ||(((c = (unsigned long) (unsigned char) (s[pos] - 'A')) < bext)
  13         &&(c = c + base))
  14         ) /* this gets the job done */
  15     { result = result * (base + bext) + c; ++pos; if (pos == n) break; }
  16   *u = result; return pos;
  17 }
  18
  19 unsigned int scan_nbbint(s,n,base,bext,u)
  20 char *s; unsigned int n; unsigned int base; unsigned int bext; unsigned int *u;
  21 {
  22   unsigned int pos; unsigned long result;
  23   pos = scan_nbblong(s,n,base,bext,&result);
  24   *u = result; return pos;
  25 }
  26
  27 unsigned int scan_nbbshort(s,n,base,bext,u)
  28 char *s; unsigned int n; unsigned int base; unsigned int bext; unsigned short *u;
  29 {
  30   unsigned int pos; unsigned long result;
  31   pos = scan_nbblong(s,n,base,bext,&result);
  32   *u = result; return pos;
  33 }