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-rw-r--r--src/stdio/vfprintf.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index f19058d3..f13fbe10 100644
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c
@@ -326,9 +326,10 @@ static int fmt_fp(FILE *f, long double y, int w, int p, int fl, int t)
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 */