• Brother Bill (30/30) Feb 14 2016 In "The D Programming Language", page 402, the toy program fails.
• cym13 (3/6) Feb 14 2016 Can't reproduce with DMD 2.0.70, LDC 0.16.1 or GDC 5.3.0 on Linux
• Brother Bill (3/10) Feb 14 2016 It is failing in Windows, not Linux.
• Mike Parker (3/15) Feb 14 2016 Works for me on the command line. I don't have VisualD installed
• thedeemon (27/29) Feb 15 2016 This one works fine for me in Windows with VisualD and DMD

Brother Bill <foo bar.com> writes:

In "The D Programming Language", page 402, the toy program fails.

The first fail is that enforce() needs: import std.exception;

The second fail is that when debugging, in Visual Studio 2015 
Community Edition,
it fails with this error:
   First-change exception: std.format.FormatException Unterminated 
format specifier: "%" at 
C:\D\dmd2\windows\bin\..\..\src\phobos\std\format.d(830).

Please provide full replacement of this toy program that works 
with D version 2.070.0

This is what was entered:

import std.concurrency, std.stdio, std.exception;

void main() {
	auto low = 0,
	     high = 100;
	auto tid = spawn(&writer);

	foreach (i; low .. high) {
		writeln("Main thread: ", i);
		tid.send(thisTid, i);
		enforce(receiveOnly!Tid() == tid);
	}
}

void writer() {
	for (;;) {
		auto msg = receiveOnly!(Tid, int)();
		writeln("secondary thread: ", msg[1]);
		msg[0].send(thisTid);
	}
}


Thank you.

cym13 <cpicard openmailbox.org> writes:

On Sunday, 14 February 2016 at 22:54:36 UTC, Brother Bill wrote:
 In "The D Programming Language", page 402, the toy program 
 fails.

 [...]

Can't reproduce with DMD 2.0.70, LDC 0.16.1 or GDC 5.3.0 on Linux 
x86_64. The code seems to work as intended.

Brother Bill <foo bar.com> writes:

On Sunday, 14 February 2016 at 23:39:33 UTC, cym13 wrote:
 On Sunday, 14 February 2016 at 22:54:36 UTC, Brother Bill wrote:
 In "The D Programming Language", page 402, the toy program 
 fails.

 [...]

 Can't reproduce with DMD 2.0.70, LDC 0.16.1 or GDC 5.3.0 on 
 Linux x86_64. The code seems to work as intended.

It is failing in Windows, not Linux.
Can someone reproduce this in Windows with VisualD?

Mike Parker <aldacron gmail.com> writes:

On Monday, 15 February 2016 at 00:58:54 UTC, Brother Bill wrote:
 On Sunday, 14 February 2016 at 23:39:33 UTC, cym13 wrote:
 On Sunday, 14 February 2016 at 22:54:36 UTC, Brother Bill 
 wrote:
 In "The D Programming Language", page 402, the toy program 
 fails.

 [...]

 Can't reproduce with DMD 2.0.70, LDC 0.16.1 or GDC 5.3.0 on 
 Linux x86_64. The code seems to work as intended.

 It is failing in Windows, not Linux.
 Can someone reproduce this in Windows with VisualD?

Works for me on the command line. I don't have VisualD installed 
right now, but I can't see how that would make a difference.

thedeemon <dlang thedeemon.com> writes:

On Sunday, 14 February 2016 at 22:54:36 UTC, Brother Bill wrote:

 Please provide full replacement of this toy program that works 
 with D version 2.070.0

This one works fine for me in Windows with VisualD and DMD 
2.070.0:
------------------------------
import std.concurrency, std.stdio, std.exception;

void main() {
	auto low = 0,
		high = 100;
	auto tid = spawn(&writer);

	foreach (i; low .. high) {
		writeln("Main thread: ", i);
		tid.send(thisTid, i);
		enforce(receiveOnly!Tid() == tid);
	}
}

void writer() {
	scope(failure) return;
	for (;;) {
		auto msg = receiveOnly!(Tid, int)();
		writeln("secondary thread: ", msg[1]);
		msg[0].send(thisTid);
	}
}

------------------------------

Just one line added to writer() in order to catch OwnerTerminated 
exception and end the thread silently. Original version produced 
an error when main thread finished before the writer thread.