On 27/09/2009 03:35, Walter Bright wrote:
Yigal Chripun wrote:
An exception trace is *far* better than a segfault and that does not
require null values.
Seg faults are exceptions, too. You can even catch them (on windows)!
No, segfaults are *NOT* exceptions. the setup you mention is windows
only as Andrei said and for *nix is irrelevant. I develop on Unix
(solaris) and segfault are a pain to deal with.
furthermore, even *IF* segfaults were transformed in D to exceptions
that still doesn't make them proper exceptions because true exceptions
are thrown at the place of the error which is not true for segfaults.
T foo() {
T t;
...logic
if (error) return null;
return t;
}
now, foo is buried deep in a lib.
user code has:
T t = someLib.foo();
... logic
t.fubar = 4; //segfault t is null
how is it better to segfault in t.fubar as opposed to throw an exception
inside foo?
