Function core::arch::aarch64::vcvtq_n_s64_f64

pub unsafe fn vcvtq_n_s64_f64(a: float64x2_t, const N: i32) -> int64x2_t

Available on AArch64 and target feature neon only.

浮点数转换为定点数，四舍五入为零

Arm’s documentation