all

Returns 1 if the most significant bit in all components of x is set; otherwise returns 0.

template <typename I, detail::enable_if_t<(detail::builtin::is_igeninteger<I>::value), int> >
int all(I x)

1. Returns 1 if the most significant bit in all components of x is set; otherwise returns 0.
   Parameters:
   • I x