From e314258e2fe75b7443db84d2927315dea0f337c8 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Thu, 20 Oct 2016 14:40:59 -0400 Subject: [PATCH] fix minor problem in previous strtod non-nearest rounding bug fix commit 6ffdc4579ffb34f4aab69ab4c081badabc7c0a9a set lnz in the code path for non-zero digits after a huge string of zeros, but the assignment of dc to lnz truncates if the value of dc does not fit in int; this is possible for some pathologically long inputs, either via strings on 64-bit systems or via scanf-family functions. instead, simply set lnz to match the point at which we add the artificial trailing 1 bit to simulate nonzero digits after a huge run of zeros. --- 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 ae098526..278bf250 100644 --- a/src/internal/floatscan.c +++ b/src/internal/floatscan.c @@ -111,7 +111,7 @@ static long double decfloat(FILE *f, int c, int bits, int emin, int sign, int po } else { dc++; if (c!='0') { - lnz = dc; + lnz = (KMAX-4)*9; x[KMAX-4] |= 1; } }