Function vdupq_laneq_f16 

pub fn vdupq_laneq_f16(a: float16x8_t, const N: i32) -> float16x8_t

🔬This is a nightly-only experimental API. (stdarch_arm_neon_intrinsics #111800)

Available on little-endian and target feature fp16 and target feature neon and target feature v7 and (AArch64 or ARM or ARM64EC) and (AArch64 or ARM64EC) and (AArch64 or ARM64EC or target feature v7) and non-ARM64EC only.

Set all vector lanes to the same value Arm’s documentation