[Bug c++/85708] New: A corrupt fold expression passed compilation

2018-05-08 Thread violetcrestfall at hotmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85708

Bug ID: 85708
   Summary: A corrupt fold expression passed compilation
   Product: gcc
   Version: 8.1.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c++
  Assignee: unassigned at gcc dot gnu.org
  Reporter: violetcrestfall at hotmail dot com
  Target Milestone: ---

Created attachment 44095
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44095&action=edit
A corrupt fold expression example that passed compilation with GCC

The example attached has passed compilation with
GCC 8.1 (on gcc.godbolt.org) and GCC 8.0.1 (r259500).
The 5th line in the example:
(std::cerr << "Error: " << ... << std::forward(vArgs)) << std::endl;

[std::cerr << "Error: "] is not a cast-expression apparently, so this
expression should not have been recognized as a fold-expression.
The code failed to be compiled with MSVC 19.14 and Clang 6.0.0, which is the
correct behavior.

[Bug c++/85708] A corrupt fold expression passed compilation

2018-05-08 Thread violetcrestfall at hotmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85708

--- Comment #1 from violetcrestfall at hotmail dot com ---
Sorry for typo: GCC 8.0.1 (r259590).