[Bug c++/60850] New: pedantic warning behavior when casting void* to ptr-to-func

[daniel.gutson at tallertechnologies dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60850

            Bug ID: 60850
           Summary: pedantic warning behavior when casting void* to
                    ptr-to-func
           Product: gcc
           Version: 4.8.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: daniel.gutson at tallertechnologies dot com

Created attachment 32606
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32606&action=edit
proposed fix

#pragma GCC diagnostic ignore "-pedantic"
doesn't work in cases such as:

    void* p = 0;
#pragma GCC diagnostic ignored "-pedantic"
    F* f2 = reinterpret_cast<F*>(p);

I tested the attached patch, and all passes plus the test case I added.

Please consider to add the fix in 4.8.3.
I don't have write access.

Changelog:

2014-03-31  Daniel Gutson  <daniel.gut...@tallertechnologies.com>

gcc/cp/
        * typeck.c (build_reinterpret_cast_1): Pass proper argument to
warn() in pedantic.

gcc/testsuite/g++.dg/
        * diagnostic/pedantic.C: New test case.