[glibmm] Avoid compiler warning in TimeVal::as_double()

[Daniel Elstner <daniel src gnome org>]

commit f510673363137d691f5063bc68d9fa7bb3ef9709
Author: Daniel Elstner <danielk openismus com>
Date:   Mon May 31 00:50:50 2010 +0200

    Avoid compiler warning in TimeVal::as_double()
    
    * glib/glibmm/timeval.h (TimeVal::as_double): Cast long int operands
    to double explicitly, to avoid a conversion warning due to possible
    loss of precision.  Reported by Alexander Shaduri, GNOME bug #617463.

 ChangeLog             |    8 ++++++++
 glib/glibmm/timeval.h |    2 +-
 2 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index b785a7b..17f373f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2010-05-30  Daniel Elstner  <danielk openismus com>
+
+	Avoid compiler warning in TimeVal::as_double()
+
+	* glib/glibmm/timeval.h (TimeVal::as_double): Cast long int operands
+	to double explicitly, to avoid a conversion warning due to possible
+	loss of precision.  Reported by Alexander Shaduri, GNOME bug #617463.
+
 2010-05-28  José Alburquerque  <jaalburqu svn gnome org>
 
 	Settings: Add [get|set]_strv().
diff --git a/glib/glibmm/timeval.h b/glib/glibmm/timeval.h
index 685f783..8897ee1 100644
--- a/glib/glibmm/timeval.h
+++ b/glib/glibmm/timeval.h
@@ -157,7 +157,7 @@ TimeVal& TimeVal::operator-=(long seconds)
 inline
 double TimeVal::as_double() const
 {
-  return tv_sec + ((double) tv_usec / (double) G_USEC_PER_SEC);
+  return double(tv_sec) + double(tv_usec) / double(G_USEC_PER_SEC);
 }
 
 inline