https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69872
Bug ID: 69872
Summary: Wnarrowing note without warning/errror
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: manu at gcc dot gnu.org
Target Milestone: ---
struct s { int x, y; };
short offsets[1] = {
((char*) &(((struct s*)16)->y) - (char *)16), // { dg-message "narrowing" ""
{ target c++11 } }
};
$ g++ prog.cc -Wall -Wextra -std=gnu++1z -pedantic "-Wno-narrowing"
prog.cc:3:34: note: the expression has a constant value but is not a C++
constant-expression
((char*) &(((struct s*)16)->y) - (char *)16), // { dg-message "narrowing" ""
{ target c++11 } }
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
