https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68284
Bug ID: 68284
Summary: -Wlong-long causes dialect options to be ignored
Product: gcc
Version: 5.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: rain.backnet at gmail dot com
Target Milestone: ---
Using the -Wlong-long option seems to cause warnings that ignore the currently
set dialect. For instance:
auto main()->int {
int64_t trillion = 1000000000000ll
}
Building with:
g++ -std=c++11 -Wlong-long test.cpp
...produces the incongruous warning:
warning: use of C++11 long long integer constant [-Wlong-long]
Another example of what appears to be the same bug can be seen at
http://coliru.stacked-crooked.com/a/5d9ffed39a10416e when building in C++11
mode with the warning
warning: ISO C++ 1998 does not support 'long long' [-Wlong-long]
