[Issue 1678] New: ref with varargs generates invalid code

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=1678

           Summary: ref with varargs generates invalid code
           Product: D
           Version: 1.023
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: ary at esperanto.org.ar


Given this code:

***
module main;

import std.stdio;
import std.stdarg;

void foo(int x, ...) {
    writefln("%d arguments", _arguments.length);
    for (int i = 0; i < _arguments.length; i++) {   
            _arguments[i].print();
        int j = va_arg!(int)(_argptr);
            writefln("\t%d", j);
    }
}

void fooRef(ref int x, ...) {
    writefln("%d arguments", _arguments.length);
    for (int i = 0; i < _arguments.length; i++) {   
            _arguments[i].print();
        int j = va_arg!(int)(_argptr);
            writefln("\t%d", j);
    }
}

void main() {
        foo(1, 2, 3, 4, 5);

        writefln("---");

        int x = 1;
        fooRef(x, 2, 3, 4, 5);
}
***

the output is:

***
4 arguments
int
        2
int
        3
int
        4
int
        5
---
4 arguments
int
        1245056
int
        4203171
int
        1
int
        1245004
***

Note that both functions are identical, except the last one has a ref
parameter. Without it, the function works as expected.


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