From 75363003bd080897e9705f8edd70066a191e95aa Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Wed, 2 Jun 2010 04:01:16 -0400
Subject: [PATCH] Throw an exception if mpfr_asprintf fails

---
 src/amount.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/amount.cc b/src/amount.cc
index 13f30755..1cba92f8 100644
--- a/src/amount.cc
+++ b/src/amount.cc
@@ -130,7 +130,10 @@ namespace {
       mpfr_set_prec(tempfb, bits + amount_t::extend_by_digits*8);
       mpfr_set_q(tempfb, quant, GMP_RNDN);
 
-      mpfr_asprintf(&buf, "%.*Rf", prec, tempfb);
+      if (mpfr_asprintf(&buf, "%.*Rf", prec, tempfb) < 0)
+	throw_(amount_error,
+	       _("Cannot output amount to a floating-point representation"));
+	
       DEBUG("amount.convert",
 	    "mpfr_print = " << buf << " (precision " << prec << ")");