| ␉int minwidth,␊ |
| ␉int (*putfn_p)(),␊ |
| ␉void* putfn_arg␊ |
| )␊ |
| ␉)␊ |
| {␊ |
| ␉char prbuf[22];␊ |
| ␉register char *cp;␊ |
|
| ␉␉*cp++ = "0123456789abcdef0123456789ABCDEF"[(flag & UCASE) + (int) (n%b)];␊ |
| ␉␉n /= b;␊ |
| ␉␉width++;␊ |
| ␉} while (n);␊ |
| ␉}␊ |
| ␉while (n);␊ |
| ␊ |
| ␉if (neg)␊ |
| ␉{␊ |
|
| ␉return width;␊ |
| }␊ |
| ␊ |
| /*␊ |
| * Printp prints a pointer.␊ |
| */␊ |
| static int printp(␊ |
| ␉const void* p,␊ |
| ␉int minwidth,␊ |
| ␉int (*putfn_p)(),␊ |
| ␉void* putfn_arg␊ |
| ␉)␊ |
| {␊ |
| ␉int width = 0;␊ |
| ␊ |
| ␉if (p)␊ |
| ␉{␊ |
| ␉␉if (putfn_p)␊ |
| ␉␉{␊ |
| ␉␉␉(void)(*putfn_p)('0', putfn_arg);␊ |
| ␉␉␉(void)(*putfn_p)('x', putfn_arg);␊ |
| ␉␉}␊ |
| ␉␉width = 2;␊ |
| ␉␉minwidth = (minwidth >= 2) ? (minwidth - 2) : 0;␊ |
| ␉}␊ |
| ␉return width + printn((unsigned long long) p, 16, ZERO, minwidth, putfn_p, putfn_arg);␊ |
| }␊ |
| ␊ |
| int prf(␊ |
| ␉const char *fmt,␊ |
| ␉va_list ap,␊ |
| ␉int (*putfn_p)(),␊ |
| ␉void *putfn_arg␊ |
| )␊ |
| ␉)␊ |
| {␊ |
| ␉int b, c, len = 0;␊ |
| ␉const char *s;␊ |
|
| ␉␉␉b = 16;␊ |
| ␉␉␉goto number;␊ |
| ␉␉case 'd':␊ |
| ␉␉case 'i':␊ |
| ␉␉␉flag |= SIGNED;␊ |
| ␉␉␉/* fall through */␊ |
| ␉␉case 'u':␊ |
|
| ␉␉␉}␊ |
| ␉␉␉len++;␊ |
| ␉␉␉break;␊ |
| ␉␉case '%':␊ |
| ␉␉␉if (putfn_p)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉(void)(*putfn_p)('%', putfn_arg);␊ |
| ␉␉␉}␊ |
| ␉␉␉len++;␊ |
| ␉␉␉break;␊ |
| ␉␉case 'p':␊ |
| ␉␉␉len += printp(va_arg(ap, const void*), minwidth, putfn_p, putfn_arg);␊ |
| ␉␉␉break;␊ |
| ␉␉case 'n':␊ |
| ␉␉␉s = va_arg(ap, const char*);␊ |
| ␉␉␉if (s)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉*(int*) s = len;␊ |
| ␉␉␉}␊ |
| ␉␉␉break;␊ |
| ␉␉default:␊ |
| ␉␉␉break;␊ |
| ␉}␊ |
