Bug 1591 – 2.006 breaks writef("%s", str) where str is a string

2.006 breaks the following program: import std.stdio; void main() { // char[] str = cast(char[])("hello, world"); string str = cast(string)("hello, world"); writefln("%s", str); // Breaks in 2.006 } This does not compile with either definition of str, the definition out version or the active definition. (Note, the cast is needed for the char[] definition of str, but not the string definition of str).

This does NOT fail for me when using dmd 2.006 (Windows XP) ---- c:\temp>type test.d import std.stdio; void main() { string str = "hello, world"; writefln("%s", str); } c:\temp>dmd test.d y:\dmd\bin\..\..\dm\bin\link.exe test,,,user32+kernel32/noi; c:\temp>test hello, world c:\temp>dmd Digital Mars D Compiler v2.006 Copyright (c) 1999-2007 by Digital Mars written by Walter Bright ----

Oops, I had warnings enabled. (I compile from a batch file and had forgotten that I did this. I should have read the error message more carefully.) Try again with dmd -w test.d.

Ok, now it fails. You could have inserted the error message into your original report to speed up problem determination. ---- c:\temp>dmd -w test warning - y:\dmd\bin\..\src\phobos\std\format.d(2019): Error: statement is not reachable y:\dmd\bin\..\src\phobos\std\format.d(2087): template instance std.format.getNthInt!(invariant(char)[],char) error instantiating ---- (P.S. I've had to turn off -w because of problems with std.stream).

Fixed; the fix will go into the next minor release, when the bug will be closed. Thanks!

Andrei's fix worked.