# Function core::arch::x86_64::_addcarryx_u64
1.33.0[−][src]

    pub unsafe fn _addcarryx_u64(c_in: u8, a: u64, b: u64, out: &mut u64) -> u8

This is supported on x86-64 and target feature `adx` only.

Adds unsigned 64-bit integers `a` and `b` with unsigned 8-bit carry-in `c_in` (carry or overflow flag), and store the unsigned 64-bit result in `out`, and the carry-out is returned (carry or overflow flag).