[Issue 14370] New: writeln() crashes on invalid dchar

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14370

          Issue ID: 14370
           Summary: writeln() crashes on invalid dchar
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Phobos
          Assignee: nobody at puremagic.com
          Reporter: erikas.aubade at gmail.com

The following code seems to cause, depending on system and implementation,
either a segfault, sigabrt, or "HLT instruction" exception.

import std.stdio;
import std.encoding;

void main() {
   writeln(INVALID_SEQUENCE);
}

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