https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65923
Bug ID: 65923
Summary: False positive for warning about literal operator
suffix and using
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: arnetheduck at gmail dot com
Target Milestone: ---
In the following snippet, a warning is given when bringing a chrono literal
into the global namespace explicity, but not when importing all literals. Looks
like the warning shouldn't be there, since the two do the same thing, and using
directives are the way to go with literal operators.
cat /tmp/tmp.cc:
#include <chrono>
using std::literals::chrono_literals::operator""s; // warning here
using std::literals; // no warning here
/usr/local/gcc49/bin/g++ -c -std=c++14 /tmp/tmp.cc:
/tmp/tmp.cc:4:47: warning: literal operator suffixes not preceded by ‘_’ are
reserved for future standardization
using std::literals::chrono_literals::operator""s; // warning here
