From: John Darrington <john@darrington.wattle.id.au>
Date: Thu, 20 Sep 2012 09:22:12 +0000 (+0200)
Subject: src/data/data-out.c: Added assertion to catch negative values
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83868d9b4cfc2259dad94c8de72f03f918995cfd;p=pspp

src/data/data-out.c: Added assertion to catch negative values

If the contents of string does not contain a '.', then integer_digits
will end up negative, thus causing a crash later.  This change adds
an assertion to catch this condition and thus make the diagnosis easier
should it ever occur.
---

diff --git a/src/data/data-out.c b/src/data/data-out.c
index 2a0dd0a195..10ca4ede77 100644
--- a/src/data/data-out.c
+++ b/src/data/data-out.c
@@ -864,6 +864,7 @@ rounder_init (struct rounder *r, double number, int max_decimals)
   r->leading_zeros = strspn (r->string, "0.");
   r->leading_nines = strspn (r->string, "9.");
   r->integer_digits = strchr (r->string, '.') - r->string;
+  assert (r->integer_digits >= 0);
   r->negative = number < 0;
 }