https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78146
Bug ID: 78146
Summary: "-std=c++11 -std=gnu++11" is different from
"-std=gnu++11" alone
Product: gcc
Version: 6.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: Laurent.Rineau__gcc at normalesup dot org
Target Milestone: ---
Let say I have this file with one line:
auto v = 1.Q;
That file does compile with `g++ -std=gnu++11 -c test.cpp`, but not with `g++
-std=c++11 -std=gnu++11 -c test.cpp` (when `-std=` is used twice):
g++ -std=c++11 -std=gnu++11 -c test.cpp
test.cpp:1:10: error: unable to find numeric literal operator ‘operator""Q’
auto v = 1.Q;
^~~
test.cpp:1:10: note: use -std=gnu++11 or -fext-numeric-literals to enable more
built-in suffixes
Compilation exited abnormally with code 1 at Fri Oct 28 13:47:10
Should not the last `-std=` supersede completely any previous occurrence?
I use gcc from Fedora 24:
gcc (GCC) 6.2.1 20160916 (Red Hat 6.2.1-2)
