pub fn cast_data(data: &[u8], src: SrcDtype, dst: GGMLType) -> Result<Vec<u8>>Expand description
Cast raw little-endian tensor bytes from src to dst.
Same-dtype casts are byte-for-byte passthrough. F32→F16 rounds to nearest even; F32→BF16 rounds to nearest even with NaN preservation; everything routed through F32 uses exact widening.