[Bug c++/59823] [4.7/4.8/4.9 Regression] conversion operator to const X& causes copy-construction of temporary

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59823

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Jan 28 04:31:39 2014
New Revision: 207170

URL: http://gcc.gnu.org/viewcvs?rev=207170&root=gcc&view=rev
Log:
    PR c++/59823
    Core DR 1138
    * call.c (reference_binding): Pass LOOKUP_NO_TEMP_BIND for
    list-initialization.  A conversion to rvalue ref that involves
    an lvalue-rvalue conversion is bad.
    (convert_like_real): Give helpful error message.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/overload3.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c