if (x || d+1!=z) {
long double round = CONCAT(0x1p,LDBL_MANT_DIG);
long double small;
- if (x<i/2) small=0x01p-1;
- else if (i==i/2 && d+1==z) small=0x10p-1;
- else small=0x11p-1;
+ if (*d/i & 1) round += 2;
+ if (x<i/2) small=0x0.8p0;
+ else if (x==i/2 && d+1==z) small=0x1.0p0;
+ else small=0x1.8p0;
if (pl && *prefix=='-') round*=-1, small*=-1;
*d -= x;
/* Decide whether to round by probing round+small */
fl |= ALT_FORM;
case 'x': case 'X':
a = fmt_x(arg.i, z, t&32);
- if (fl & ALT_FORM) prefix+=(t>>4), pl=2;
+ if (arg.i && (fl & ALT_FORM)) prefix+=(t>>4), pl=2;
if (0) {
case 'o':
a = fmt_o(arg.i, z);
case 'u':
a = fmt_u(arg.i, z);
}
- if (!arg.i && !p) continue;
if (p>=0) fl &= ~ZERO_PAD;
+ if (!arg.i && !p) {
+ a=z;
+ break;
+ }
p = MAX(p, z-a + !arg.i);
break;
case 'c':
case 'm':
if (1) a = strerror(errno); else
case 's':
- a = arg.p;
+ a = arg.p ? arg.p : "(null)";
z = memchr(a, 0, p);
if (!z) z=a+p;
else p=z-a;