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

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This commit is contained in:
Rich Felker 2011-04-12 11:50:52 -04:00
parent 209f2bbd95
commit e514228043
1 changed files with 3 additions and 1 deletions
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4
src/stdio/vfprintf.c
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@ -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--);
}