http://d.puremagic.com/issues/show_bug.cgi?id=10489

           Summary: Orphan format arguments exception/error for writeln
                    unless they are
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: bearophile_hugs@eml.cc


--- Comment #0 from bearophile_hugs@eml.cc 2013-06-27 12:20:04 PDT ---
In DMD 2.064alpha this program compiles and runs with no errors, warnings or run-time exceptions:

import std.stdio;
void main() {
    writefln("%d %d", 1, 2, 3);
}



While this gives a run-time exception:

import std.string;
void main() {
    format("%d %d", 1, 2, 3);
}


std.format.FormatException@...\dmd2\src\phobos\std\string.d(2346): Orphan format arguments: args[2..3]


To catch some programmer mistakes I suggest to turn this into an exception/error:

writefln("%d %d", 1, 2, 3);


But as stated by Andrei Alexandrescu: http://forum.dlang.org/post/kqgna8$1ese$1@digitalmars.com

> The only point I'd negotiate would be to not throw with positional arguments, and throw with sequential arguments. All code that cares uses positional specifiers anyway.

So according to Andrei this should be accepted:


import std.stdio;
void main() {
    writefln("%2$s %1$s", 1, 2, 3);
}


Currently this is accepted (and it prints "A B10"), but I think it should be
not accepted:

import std.stdio;
void main() {
    writefln("A%2$s B%1$s", 10);
}

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http://d.puremagic.com/issues/show_bug.cgi?id=10489


Andrej Mitrovic <andrej.mitrovich@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |andrej.mitrovich@gmail.com
         Resolution|                            |DUPLICATE


--- Comment #1 from Andrej Mitrovic <andrej.mitrovich@gmail.com> 2013-06-29 20:05:48 PDT ---
*** This issue has been marked as a duplicate of issue 4927 ***

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