[Bug c++/50810] c++0x-compat does not warn about narrowing conversions

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50810

--- Comment #19 from Jason Merrill <jason at gcc dot gnu.org> 2011-11-02 
20:16:49 UTC ---
Author: jason
Date: Wed Nov  2 20:16:43 2011
New Revision: 180794

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180794
Log:
    PR c++/50810
gcc/c-family
    * c-opts.c (c_common_handle_option): Enable -Wnarrowing as part
    of -Wall; include -Wnarrowing in -Wc++0x-compat; adjust default
    Wnarrowing for C++0x and C++98.
    * c.opt ([Wnarrowing]): Update.
gcc/cp
    * typeck2.c (check_narrowing): Adjust OPT_Wnarrowing diagnostics.
    (digest_init_r): Call check_narrowing irrespective of the C++ dialect.
    * decl.c (check_initializer): Likewise.
    * semantics.c (finish_compound_literal): Likewise.
gcc/
    * configure.ac: Add -Wno-narrowing to warning options.
libcpp/
    * configure.ac: Add -Wno-narrowing to warning options.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/warn_cxx0x2.C
    trunk/gcc/testsuite/g++.dg/cpp0x/warn_cxx0x3.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/configure
    trunk/gcc/configure.ac
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/semantics.c
    trunk/gcc/cp/typeck2.c
    trunk/gcc/doc/invoke.texi
    trunk/gcc/testsuite/ChangeLog
    trunk/libcpp/ChangeLog
    trunk/libcpp/configure
    trunk/libcpp/configure.ac