digitalmars.D.bugs - [Issue 1620] New: std.conv.to fails for integer unsigned->signed conversion
- d-bugmail puremagic.com (30/30) Oct 28 2007 http://d.puremagic.com/issues/show_bug.cgi?id=1620
- d-bugmail puremagic.com (4/4) Mar 01 2008 http://d.puremagic.com/issues/show_bug.cgi?id=1620
- d-bugmail puremagic.com (9/9) Mar 01 2008 http://d.puremagic.com/issues/show_bug.cgi?id=1620
- d-bugmail puremagic.com (9/9) Mar 06 2008 http://d.puremagic.com/issues/show_bug.cgi?id=1620
http://d.puremagic.com/issues/show_bug.cgi?id=1620
Summary: std.conv.to fails for integer unsigned->signed
conversion
Product: D
Version: 2.006
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Phobos
AssignedTo: bugzilla digitalmars.com
ReportedBy: i.kasiuk gmx.de
A conversion like to!(int)(123u) fails, producing the following error at
runtime:
Error: Error: overflow Conversion underflow
Here is the code from conv.d which does the check:
static const
sSmallest = isFloatingPoint!(S) ? -S.max : S.min,
tSmallest = isFloatingPoint!(T) ? -T.max : T.min;
static if (sSmallest < tSmallest) {
// possible underflow
if (value < tSmallest) conv_overflow("Conversion underflow");
}
...
This apparently doesn't work as intended because of the implicit conversions
happening when the values are compared.
Actually, why does the compiler silently do an implicit type conversion here? I
think this is a bit unfortunate.
--
Oct 28 2007
d-bugmail puremagic.com http://d.puremagic.com/issues/show_bug.cgi?id=1620 ------- Comment #1 from i.kasiuk gmx.de 2008-03-01 12:31 ------- The bug is still present in version 2.011. --
Mar 01 2008
http://d.puremagic.com/issues/show_bug.cgi?id=1620
andrei metalanguage.com changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|bugzilla digitalmars.com |andrei metalanguage.com
------- Comment #2 from andrei metalanguage.com 2008-03-01 17:40 -------
I actually fixed this in my tree. The fix will be part of the next release.
Thanks!
--
Mar 01 2008
http://d.puremagic.com/issues/show_bug.cgi?id=1620
andrei metalanguage.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
------- Comment #3 from andrei metalanguage.com 2008-03-07 00:38 -------
Fixed in 2.012.
--
Mar 06 2008