From 2ac580fdfe1daf9924f221dc98878ae480306bfa Mon Sep 17 00:00:00 2001
From: Rich Felker
Date: Mon, 16 Apr 2012 01:53:52 -0400
Subject: [PATCH] floatscan: fix incorrect count of leading nonzero digits
this off-by-one error was causing values with just one digit past the
decimal point to be treated by the integer case. in many cases it
would yield the correct result, but if expressions are evaluated in
excess precision, double rounding may occur.
---
src/internal/floatscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/internal/floatscan.c b/src/internal/floatscan.c
index 10123bfa..377a008b 100644
--- a/src/internal/floatscan.c
+++ b/src/internal/floatscan.c
@@ -81,8 +81,8 @@ static long double decfloat(FILE *f, int c, int bits, int emin, int sign, int po
if (lrp!=-1) break;
lrp = dc;
} else if (k < KMAX-2) {
- if (c!='0') lnz = dc;
dc++;
+ if (c!='0') lnz = dc;
if (j) x[k] = x[k]*10 + c-'0';
else x[k] = c-'0';
if (++j==9) {
--
2.11.0