ANSI/ISO C@. These include @code{ffs}, @code{alloca}, @code{_exit},
@code{index}, @code{bzero}, @code{conjf}, and other related functions.
-@item -fnothrow-opt
-@opindex fnothrow-opt
-Treat a @code{throw()} exception specification as though it were a
-@code{noexcept} specification to reduce or eliminate the text size
-overhead relative to a function with no exception specification. The
-semantic effect is that an exception thrown out of a function with
-such an exception specification will result in a call to
-@code{terminate} rather than @code{unexpected}.
-
@item -fno-operator-names
@opindex fno-operator-names
Do not treat the operator name keywords @code{and}, @code{bitand},