diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index a6baee7cda1..afb9f211378 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -4722,6 +4722,16 @@ using scalars of wider type, which normally is more performance efficient; and @code{as a single scalar}, which means that vector fits into a scalar type. +@item -Wno-virtual-move-assign +@opindex Wvirtual-move-assign +@opindex Wno-virtual-move-assign +Suppress warnings about inheriting from a virtual base with a +non-trivial C++11 move assignment operator. This is dangerous because +if the virtual base is reachable along more than one path, it will be +moved multiple times, which can mean both objects end up in the +moved-from state. If the move assignment operator is written to avoid +moving from a moved-from object, this warning can be disabled. + @item -Wvla @opindex Wvla @opindex Wno-vla |