On Thursday, 27 July 2017 at 01:21:40 UTC, Steven Schveighoffer
wrote:
the writeln("start"); and writeln("end"); in main. This is
what I meant by printing. These do not appear in the output.
The programs starts and immediately ends without printing
"start" and "end".
try flushing the output. In some cases the output streams do
not flush on newlines.
I did not put an output in the exception handler of the
WndProc because writeln can throw and the function is marked
nothrow. All I as trying to do there was get it to recover.
Just surround writeln with try/catch(Exception), should work.
You could also just use good old printf.
-Steve
This appears to be it. When an error is thrown, stdout does not
flush. When I put stdout.flush() immediately after the
writeln("start") at the beginning it is printed correctly.
However, when I try to catch the error and then do stdout.flush()
in main, it does not print.
Do you know of a way to make D always flush the output buffer
when an error is thrown?
On Thursday, 27 July 2017 at 01:05:28 UTC, ketmar wrote:
'cause, as i said, RangeError is not an exception. i thought
that you already know it, as this is "general", not "learning"
NG.
Yes, I understand this. This is not my question. My question is
why all previous output to the console does not occur before the
error is thrown. As Steve said, this is because the output buffer
is not flushed when an error occurs.
