fix printf("%.9g", 1.1) and similar not dropping trailing zeros

This commit is contained in:
Rich Felker 2011-04-12 11:50:52 -04:00
parent 209f2bbd95
commit e514228043

View File

@ -330,9 +330,10 @@ static int fmt_fp(FILE *f, long double y, int w, int p, int fl, int t)
else if (i==i/2 && d+1==z) small=0x10p-1;
else small=0x11p-1;
if (pl && *prefix=='-') round*=-1, small*=-1;
*d -= x;
/* Decide whether to round by probing round+small */
if (round+small != round) {
*d = *d - x + i;
*d = *d + i;
while (*d > 999999999) {
*d--=0;
(*d)++;
@ -341,6 +342,7 @@ static int fmt_fp(FILE *f, long double y, int w, int p, int fl, int t)
for (i=10, e=9*(r-a); *a>=i; i*=10, e++);
}
}
if (z>d+1) z=d+1;
for (; !z[-1] && z>a; z--);
}