https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70057
Bug ID: 70057
Summary: duplicate integer overflow diagnostic in constant
expressions
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: manu at gcc dot gnu.org
CC: bernds at gcc dot gnu.org, mpolacek at gcc dot gnu.org,
msebor at gcc dot gnu.org, unassigned at gcc dot gnu.org
Depends on: 69972
Target Milestone: ---
+++ This bug was initially created as a clone of Bug #69972 +++
G++ issues two similar kinds of diagnostics for the following code, one
-Woverflow and another -fpermissive:
$ cat t.c && /build/gcc-trunk/gcc/xgcc -B /build/gcc-trunk/gcc -S -Wall -Wextra
-Wpedantic -o/dev/null -xc++ t.c
template <int N> struct S { };
S<(__INT_MAX__ + 1)> s;
t.c:2:16: warning: integer overflow in expression [-Woverflow]
S<(__INT_MAX__ + 1)> s;
~~~~~~~~~~~~^~~
t.c:2:20: error: overflow in constant expression [-fpermissive]
S<(__INT_MAX__ + 1)> s;
^
t.c:2:20: note: in template argument for type ‘int’
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69972
[Bug 69972] duplicate integer overflow diagnostic in constant expressions
