On Tuesday, 11 June 2013 at 16:50:50 UTC, Andrei Alexandrescu
wrote:
On 6/11/13 11:57 AM, Steven Schveighoffer wrote:
This code DOES fail:
import std.stdio;
int main()
{
writeln("hello");
std.stdio.stdout.flush();
return 0;
}
Ah, I suspected so. (At a point in D's history writeln() did do
a flush; people wanted to eliminate it for efficiency reasons.)
We could introduce a flush() with throw in std.stdiobase.
Andrei
The best solution would be for writeln() to throw on use, and I
think it's fairly easy to implement: just flush once after using
the file descriptor for the first time, and throw if it fails.
While it doesn't cover a case where file descriptor becomes
non-writable during the program lifetime, it covers the most
common case of file descriptor not being writable at all.
