[Issue 17797] [REG 2.073.2] double print to stdout when reading stdin in another thread

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17797

Rainer Schuetze  changed:

   What|Removed |Added

 CC||r.sagita...@gmx.de

--- Comment #4 from Rainer Schuetze  ---
I could verify it happens with 2.073.2, but not 2.073.1. This is caused by an
updated snn.lib. Might be introduced by the fix for issue 13727.

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[Issue 17797] [REG 2.073.2] double print to stdout when reading stdin in another thread

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17797

Martin Nowak  changed:

   What|Removed |Added

 CC||c...@dawg.eu
   Hardware|All |x86

--- Comment #3 from Martin Nowak  ---
cat > bug.d << CODE
import std.stdio, core.thread;

void main()
{
auto thread = new Thread().start;
writeln("Output");
writeln("Output2");
writeln("Output3");
thread.join();
}

void func()
{
foreach (line; stdin.byLineCopy)
{
}
}
CODE
dmd -run bug.d

Slightly nicer version that terminates on EOF (Ctrl+D), works as expected on
linux.

Sure about 2.073.2? The only interesting change in

https://github.com/dlang/dmd/compare/v2.073.1...v2.073.2
https://github.com/dlang/druntime/compare/v2.073.1...v2.073.2
https://github.com/dlang/phobos/compare/v2.073.1...v2.073.2

is https://github.com/dlang/dmd/pull/6582.

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[Issue 17797] [REG 2.073.2] double print to stdout when reading stdin in another thread

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17797

ag0ae...@gmail.com changed:

   What|Removed |Added

 CC||ag0ae...@gmail.com

--- Comment #2 from ag0ae...@gmail.com ---
(In reply to Walter Bright from comment #1)
> It happens on Win32 as well, which uses the DMC runtime library, not
> Microsoft's. So it is not specific to the Microsoft runtime library.

It *only* happens with the DMC runtime. People are running 64-bit Windows, but
they're not using 64-bit dmd. I just tested in a virtual machine with
-m32mscoff and didn't see duplicated lines.

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[Issue 17797] [REG 2.073.2] double print to stdout when reading stdin in another thread

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17797

Walter Bright  changed:

   What|Removed |Added

 CC||bugzi...@digitalmars.com
  Component|dmd |phobos
   Hardware|x86 |All

--- Comment #1 from Walter Bright  ---
It happens on Win32 as well, which uses the DMC runtime library, not
Microsoft's. So it is not specific to the Microsoft runtime library.

I suspect it is a Phobos problem, not a compiler issue, and changed the
category accordingly.

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