https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65801
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-04-18
CC| |trippels at gcc dot gnu.org
Summary|Allow -Wno-narrowing to |[5/6 Regression] Allow
|silence stricter C++11 |-Wno-narrowing to silence
|narrowing rules |stricter C++11 narrowing
| |rules
Ever confirmed|0 |1
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Yes. This also breaks building Chromium.
markus@x4 ~ % echo "int main () {int i = { 0xFFFFFFFF };}" | g++ -std=c++11
-Wno-narrowing -x c++ -
<stdin>: In function ‘int main()’:
<stdin>:1:35: error: narrowing conversion of ‘4294967295u’ from ‘unsigned int’
to ‘int’ inside { }
While the standard is clear that this is an error,
accepting -Wno-narrowing as in 4.8, 4.9 and clang looks acceptable to me.