Function vst3_f16 

pub unsafe fn vst3_f16(a: *mut f16, b: float16x4x3_t)

🔬This is a nightly-only experimental API. (stdarch_neon_f16 #136306)

Available on target feature neon and target feature fp16 and (AArch64 or target_arch="arm64ec") only.

Store multiple 3-element structures from three registers Arm’s documentation

Safety

• Neon instrinsic unsafe